Personality and the leading behavioral contributors of mortality

Primary affective systems and personality: Disentangling the within-person reciprocal relationships

Personality traits and affective functioning have been closely linked. Empirical evidence suggests that the Five-Factor Model traits have been linked with Panskepp's six primary affective systems, as measured by the Affective Neuroscience Personality Scales: SEEKING, PLAY, CARE (positive emotions) and FEAR, SADNESS, ANGER (negative emotions).

OBJECTIVE

The present work investigated the dynamic relations between primary affective systems and FFM personality.

METHOD

Drawing from a sample of 220 participants completing surveys on four consecutive days, we used the random intercept cross-lagged panel model (RI-CLPM) to investigate the associations between primary affective systems and personality traits.

RESULTS

The following associations were identified: bidirectional associations between negative emotions and neuroticism, unidirectional associations from SEEKING to openness and from agreeableness to three primary affective systems. No significant associations were observed between extraversion and primary affective systems.

CONCLUSIONS

Our findings highlight the importance of disentangling the within-person effects when examining the relationship between primary affective systems and personality.

Association between personality traits and symptoms of depression and anxiety via emotional regulation and distress tolerance

The Big Five personality traits have shown associations with symptoms of depression and anxiety among college students, but it is unclear which factors mediate these relationships. Past research suggests that psychological distress is closely related to difficulties in affect regulation (e.g., low distress tolerance). Therefore, the present study examined the associations between personality traits and depression and anxiety via emotion regulation and distress tolerance. Participants were 694 (81.4% females; Mean age = 23.12 [SD 2.75]) Argentinian college students who completed an online survey examining mental health and personality variables. A sizeable percentage of students endorsed moderate to severe symptoms of depression (45.1%) or anxiety (25.9%). Utilizing path analyses, we found that appraisal, a dimension of distress tolerance, atemporally mediated the association between emotional stability and symptoms of depression/anxiety (i.e., higher levels of emotional stability → higher appraisal distress tolerance → fewer symptoms of depression/anxiety). Further, expressive suppression (a dimension of emotion regulation) significantly mediated the associations between personality traits (i.e., agreeableness and extraversion) and symptoms of depression (higher levels of agreeableness/extraversion → lower use of expressive suppression → fewer symptoms of depression). Taken together, the results suggest that higher levels of emotional stability, extraversion and agreeableness could protect students from the development of symptoms of depression/anxiety via lower maladaptive emotion regulation strategies and higher distress tolerance (particularly appraisal). These findings highlight the relevance of intervention strategies specifically tailored to improve distress tolerance and emotion regulation for those students undergoing mental health problems.

Obstacles to Biosimilar Acceptance and Uptake in Oncology: A Review

Importance

Biosimilar drugs provide cost-effective yet clinically indistinguishable replications of target drugs. During initial development, this class of biologic medicines was expected to revolutionize pharmaceutical markets; however, following US Food and Drug Administration approval of the first biosimilar drug in 2015, the commercialization of biosimilars has been limited. The lack of biosimilar use may be especially salient in oncology, given that biosimilar distribution in this particularly high-cost area of medicine would bring savings on the order of many billions of dollars.

Observations

While researchers have focused on salient economic barriers to biosimilar uptake in the US, the present review provides insight regarding noneconomic barriers. This review discusses psychological, attitudinal, and educational factors among both health care professionals and payers in the US that may play a role in slowing biosimilar uptake. More specifically, these factors include a lack of health care professional education, concerns of safety and efficacy, and overly complex product naming systems.

Conclusions and Relevance

The pathway to biosimilar use has been obstructed by economic elements as well as attitudinal and psychological factors. For biosimilar drugs to achieve their potential in decreasing treatment costs and thus increasing patient access, it will be essential for both economic and noneconomic factors to be identified and systematically addressed.

Psychological predictors of vaping uptake among non-smokers: A longitudinal investigation of New Zealand adults

INTRODUCTION

Demographic and health factors are known to predict vaping. Less is known about psychological predictors of vaping uptake, particularly among non-smoking adults using longitudinal designs. We aimed to model how psychological factors related to personality and mental health predicted the likelihood of vaping uptake over time in non-smoking adults ages 18+ using longitudinal data.

METHODS

Longitudinal regression models utilised data from the 2018-2020 waves of the New Zealand Attitudes and Values Study to assess how the Big Five personality traits, mental distress and self-control predicted who began vaping over time among non-users (non-vapers and non-smokers), controlling for gender, age, ethnicity and economic deprivation.

RESULTS

Analyses included 36,309 adults overall (ages 18 to 99; M = 51.0). The number of non-users who transitioned into current vaping was small (transitioned from 2018 to 2019, n = 147; 0.48%; 2019 to 2020, n = 189, 0.63%). Fully adjusted models showed that adults with higher mental distress (adjusted odds ratio [aOR] 1.43; 95% confidence interval [CI] 1.09-1.88), lower self-control (aOR 0.79; 95% CI 0.69-0.89) and higher extraversion (aOR 1.09; 95% CI 1.06-1.13) were more likely to begin vaping at the next time point compared to adults who remained non-users. Higher neuroticism and lower conscientiousness also predicted vaping uptake in initial models, but inclusion of mental distress and self-control superseded these traits.

DISCUSSION AND CONCLUSIONS

Psychological factors related to mental distress, impulse control and sociability predicted who was more likely to begin vaping as non-smoking adults. Harm prevention interventions could target these factors to reduce vaping uptake in non-smokers.

Effect of Personality Traits and Emotion Regulation Strategies on Risky Behaviors in Adolescents

The current study investigated the effects of personality traits and emotion regulation strategies on high-risk behaviors among adolescents (N = 1,572). This study used a cross-sectional and correlational research design. Multiple linear regression was used for analysis. A 1-unit increase in extraversion and neuroticism led to a 0.391- and 0.365-unit increase in high-risk behaviors, respectively. However, a 1-unit increase in agreeableness and conscientiousness led to a 0.307- and 0.365-unit decrease in high-risk behaviors, respectively (p < 0.05). A 1-unit increase in external and internal dysfunctional emotion regulation strategies led to a 1.34- and 0.548-unit increase in high-risk behaviors, respectively. However, a 1-unit increase in internal functional emotion regulation strategies led to a 0.641-unit decrease in high-risk behaviors (p < 0.05). Regression analysis showed that age, school type, sex, grade level, father's educational level, father's child-rearing style, and school performance were associated with more high-risk behaviors (p < 0.05). There were correlations between some personality traits, emotion regulation strategies, sociodemographic characteristics, and high-risk behaviors. Early intervention programs targeting dysfunctional personality traits and emotion regulation skills in adolescence may prevent the development of risky behaviors in adulthood. [Journal of Psychosocial Nursing and Mental Health Services, 62(2), 23-36.].

Association Between Optimism and Incident Stroke Among Stroke Survivors: Findings From the English Longitudinal Study of Ageing

BACKGROUND

Personality has been implicated in stroke death. However, the role of personality in stroke incidence is unclear.

PURPOSE

Our primary aim was to investigate associations between optimism, determination, control, and the "Big Five" personality traits on incident stroke. A secondary aim was to assess the potential mediating role of health behaviors in the personality-stroke relationship.

METHODS

A total of 3,703 stroke-free participants from the English Longitudinal Study of Ageing provided data on personality using the Midlife Development Inventory at Wave 5 (2010/11). Self-reported incident stroke was assessed from Waves 6 to 8 (2012-2017). Associations were modeled using discrete-time survival proportional odds logistic models. Analyses were adjusted for sociodemographic factors, history of other cardiometabolic diseases, and health behaviors.

RESULTS

Over 6 years follow-up there were 125 incident strokes. Higher optimism (hazard ratio [HR] = 0.66; 95% confidence interval [CI] 0.53, 0.82), openness (HR = 0.72; 95% CI 0.53, 0.98), and conscientiousness (HR = 0.59; 95% CI 0.42, 0.84) were associated with reduced incident stroke risk in unadjusted models. After adjustment for sociodemographic factors and history of cardiometabolic disease, only the association between optimism and incident stroke remained significant (HR = 0.72; 95% CI 0.57, 0.92). The effect of optimism remained significant in a final model adjusting for health behaviors (HR = 0.75; 95% CI 0.60, 0.96). There was evidence of a small but significant mediating effect of physical activity.

CONCLUSIONS

Higher trait optimism was associated with reduced stroke risk. This association was partially mediated by physical activity albeit the effect was small, and caution warranted inferring causality. The interplay of personality, behavior, and clinical risk factors in stroke incidence and survivorship needs further investigation.

Relationships between personality traits, high school sports participation, and physical activity of college students in the United States

Objective: The study aimed to 1) examine relationships between contexts of PA, personality traits, and high school sports participation (sports) and 2) determine significant PA correlates in a college population. Participants: 237 undergraduates at a university in the United States between September 2020 and May 2021 participated. Methods: Participants completed a survey evaluating PA, personality traits, sports, and demographic variables. Pearson partial correlations assessed correlations between different PA domains, personality traits, and sports. Conscientiousness was positively associated with all PA measures (r = .14-.30), except for active transport PA. Sports were related to vigorous and leisure PA. Conscientiousness is related to PA measures and is a significant PA correlate. However, more research is necessary to understand if leisure time PA can enhance Conscientiousness.

Longitudinal links between early adolescent temperament and inflammation among young black adults

A large body of research demonstrates that inflammation is involved in physical health problems that cause substantial morbidity and early mortality. Given inflammation's role in the etiology of chronic diseases, pediatric scientists have begun to study childhood factors that presage elevation of inflammatory biomarkers later in life. The purpose of this study was to test hypotheses designed to determine whether early adolescent emotionally intense and low attention temperaments forecast (a) inflammation at ages 25 and 29 years and (b) worsening levels of inflammation between these two data points. Toward this end, 307 Black children from the rural southeastern United States participated in an 18-year longitudinal study (mean age at baseline, 11.2 years) to determine whether and how early adolescent's behavioral styles or emotionally intense and low attention temperaments may be associated with absolute and worsening levels of inflammation in young adulthood. When children were 11-13 years of age, different teachers at each age provided assessments of emotionally intense and low attention temperaments. Thus, multiple measures of the same temperament constructs were obtained across 3 years for each participant. At age 25, participants provided data on their self-regulation abilities. Peripheral blood was collected at ages 25 and 29 years from which inflammation was quantified, using soluble urokinase plasminogen activator (suPAR), the proinflammatory cytokines interleukin (IL) IL-6, IL-10, and tumor necrosis factor-alpha (TNF-α). Covariates associated with inflammation in prior studies were also assessed; these included socioeconomic risk, gender, cigarette smoking, body mass index (BMI), adverse childhood experiences (ACEs), depressive symptoms, and medication use. An early adolescent emotionally intense temperament was associated directly with higher suPAR and cytokine levels at age 29, and with worsening cytokine levels between ages 25 and 29. A low attention temperament was associated with suPAR levels at age 29. Collectively, these observations highlight pathways that could underlie health risks associated with early adolescent temperaments. The findings suggest that emotionally intense and low-attention early adolescent temperaments forecast higher and worsening inflammation levels across young adulthood.

COVID-19 Pandemic and Lockdown: Associations With Personality and Stress Components

The present study examines the role of personality traits, interpersonal relationships, and sociodemographic factors on perceived stress, related to COVID-19, and compliance with measures to mitigate its spread. Data were collected in the midst of the 'first wave' lockdown, with the survey completed in full by 963 participants. We measured stress, directly related to the pandemic, rather than general stress, and were able to distinguish between symptoms of emotional, behavioural, cognitive, physical stress, and alienation with high concordance. We included personality scoring with standardized T-scores, allowing for cross-study comparison, and a broader questionnaire on the participants' support for COVID-19 mitigation measures. Results of the multiple regression models indicated that low emotional stability and introversion, and high conscientiousness, common conflicts with loved ones, and some demographics (female gender, middle age, chronic health problems) correspond to elevated stress. Conscientiousness was positively associated with total stress and some of its components, whereas opposite results were found for emotional stability. Extraversion was negatively correlated to total stress, its emotional and physical components, and alienation. Surprisingly, increased stress was not related to greater measure adherence. The present results shed light on how personality, interpersonal relationships, and sociodemographic factors influence people's stress response during a pandemic.

Personality Traits in Patients With Cirrhosis Are Different From Those of the General Population and Impact Likelihood of Liver Transplantation

BACKGROUND

Personality traits influence clinical outcomes in chronic diseases, but their impact in cirrhosis is unknown. We studied the personality of patients with cirrhosis undergoing liver transplant (LT) evaluation and determined their correlation to clinical outcomes.

METHODS

A multicenter' prospective study of adult patients undergoing LT evaluation was performed from January 2018 to October 2019. The "Big Five" personality traits of conscientiousness, extraversion, openness, neuroticism, and agreeableness plus agency were assessed with the Midlife Development Inventory Personality Scale and compared with the general population. Frailty was assessed with the Liver Frailty Index.

RESULTS

Two hundred sixty-three LT candidates were enrolled. Twenty-four percent had hepatitis C virus, 25% nonalcoholic steatohepatitis, and 25% ethyl alcohol (mean model for end-stage liver disease = 15.7). Compared with the general population, LT candidates had higher openness (3.1 versus 2.9; P < 0.001), extraversion (3.2 versus 3.1; P < 0.001), agreeableness (3.5 versus 3.4; P = 0.04), agency (2.9 versus 2.6; P < 0.001), neuroticism (2.2 versus 2.1; P = 0.001), and lower conscientiousness (3.3 versus 3.4; P = 0.007). Patients with higher conscientiousness were more likely to receive an LT (HR = 2.76; P = 0.003).

CONCLUSIONS

Personality traits in LT candidates differ significantly from the general population, with higher conscientiousness associated with a higher likelihood of receiving a transplant.

Response to the coronavirus disease 2019 pandemic of dental hygienists in South Korea-Part II: Fear and anxiety

OBJECTIVES

The purpose of this cross-sectional study was to evaluate the mental fear and anxiety about coronavirus disease 2019 (COVID-19) among Korean clinical dental hygienists and to investigate factors influencing the anxiety felt after the outbreak of COVID-19.

METHODS

A questionnaire on mental fear (Fear-C) and anxiety for COVID-19 was conducted among 500 clinical dental hygienists in South Korea. Fear-C was identified with eight questions. The General Anxiety Disorder-7 (GAD-7) questionnaire was scored for the pre-COVID-19 situation (GAD_Before ) and the current situation going through the pandemic (GAD_After ). The scores for the responses to the questionnaire were 0 points for strong negative and 3 points for strong positive. Higher scores indicate higher levels of fear and anxiety. All data were analysed using IBM SPSS Statistics, and the statistical significance was set at α = 0.05.

RESULTS

The average Fear-C was 16.11 ± 3.89 out of 24.00. There were significant differences in Fear-C when the type of work organization and symptoms related to COVID-19 (Sx-C) differed. Significant differences were confirmed in GAD_Before according to age range, systemic diseases, and Sx-C (p < 0.05). There was no difference in GAD_After for all general characteristics, except Sx-C (p > 0.05). In the regression model of GAD_After , Sx-C (β = 0.526), Fear-C (β = 0.358), and GAD_Before (β = 0.515) were positively related to GAD_After (p < 0.001), respectively.

CONCLUSIONS

Most dental hygienists complained of Fear-C. GAD_After was significantly higher than GAD_Before . The factor that had the greatest impact on GAD_After was Sx-C.

Five-Factor Model Personality Traits and 24-hour Urinary Cortisol in the Baltimore Longitudinal Study of Aging

Stress is implicated in models of personality and health as a mechanism that explains why traits like conscientiousness and neuroticism are associated with long-term health outcomes. Evidence for an association between personality and cortisol, a biological marker of stress, however, has been inconsistent. This study examined the association between Five-Factor Model personality traits and 24-h urinary cortisol (operationalised as a ratio of urinary free cortisol to creatinine) measured up to 12 times over intervals as long as 30 years in the Baltimore Longitudinal Study of Aging (M_age  = 61.21, SD = 15.46; 49% female). There was a modest association between conscientiousness and lower mean-level cortisol that was attenuated only slightly in the fully-adjusted model. Neuroticism and the other traits were unrelated to cortisol levels, and none of the traits was related to cortisol change over time. The null association for neuroticism suggests that its relation with long-term health may be primarily through pathways other than cortisol. The modest association between conscientiousness and 24-h urinary cortisol replicates a previous finding with a longer-term measure of cortisol measured from hair, which calls for more research on the robustness and replicability of this finding. Cortisol may be one pathway through which conscientiousness is associated with health outcomes.

Personality traits and mental health care utilization: Longitudinal findings from the MIDUS

Underutilization of mental health services is prevalent in the U.S., and an understanding of utilization patterns can inform interventions to enhance treatment use. The current study investigated longitudinal associations between changes in mental health care utilization (MHCU) and Big Five personality traits. Data included three waves (4,658 adult participants) of the Midlife Development in the United States (MIDUS) study. 1,632 participants provided data at all three waves. Second-order latent growth curve models showed that MHCU level predicted an increase in emotional stability, and emotional stability level predicted a decrease in MHCU. Increases in emotional stability, extraversion, and conscientiousness predicted decreases in MHCU. These results indicate that personality is associated with MHCU over time and may inform interventions to increase MHCU.

Personality and fatigue: meta-analysis of seven prospective studies

The present study examined the cross-sectional and longitudinal associations between the five major personality traits and fatigue. Participants were adults aged 16-104 years old (N > 40,000 at baseline) from the Health and Retirement Study, the National Social Life, Health, and Aging Project, the Wisconsin Longitudinal Study graduate and sibling samples, the National Health and Aging Trends Survey, the Longitudinal Internet Studies for the Social Sciences and the English Longitudinal Study of Ageing. Personality traits, fatigue, demographic factors, and other covariates were assessed at baseline, and fatigue was assessed again 5-20 years later. Across all samples, higher neuroticism was related to a higher risk of concurrent (meta-analytic OR = 1.73, 95% CI 1.62-1.86) and incident (OR = 1.38, 95% CI 1.29-1.48) fatigue. Higher extraversion, openness, agreeableness, and conscientiousness were associated with a lower likelihood of concurrent (meta-analytic OR range 0.67-0.86) and incident (meta-analytic OR range 0.80-0.92) fatigue. Self-rated health and physical inactivity partially accounted for these associations. There was little evidence that age or gender moderated these associations. This study provides consistent evidence that personality is related to fatigue. Higher neuroticism and lower extraversion, openness, agreeableness, and conscientiousness are risk factors for fatigue.

Interindividual age differences in personality structure

Most investigations in the structure of personality traits do not adequately address age; instead, they presuppose a constant structure across the lifespan. Further, few studies look at the structure of personality traits a-theoretically, often neglecting to examine the relationship among indicators within a trait (convergence) and across traits (divergence). Using a network approach, the present study examines (1) age differences in divergence and convergence, (2) the similarity between the Big Five and network structures, and (3) the consistency of network structure across age groups in a large, cross-sectional sample. Results indicate that convergence shows early gains in adolescence with few differences across the lifespan, while divergence mostly weakens across adulthood. The result of these age-related differences is that Big Five indicators only parallel the Big Five structure among young but not older adults. The structure of young adults tends to be quite similar while the network structures of older adults appear to greatly differ from one another. These results suggest that older adults have a different structure of personality than younger adults and suggest that future research should not assume consistency in personality structure across the lifespan.

Personality and subjective age: Evidence from six samples

Subjective age is associated with health-related outcomes across adulthood. The present study examined the cross-sectional and longitudinal associations between personality traits and subjective age. Participants (N > 31,000) were from the Midlife in the United States Study (MIDUS), the Health and Retirement Study (HRS), the National Health and Aging Study (NHATS), the Wisconsin Longitudinal Study Graduate (WLSG) and Siblings (WLSS) samples, and the English Longitudinal Study of Aging (ELSA). Demographic factors, personality traits, and subjective age were assessed at baseline. Subjective age was assessed again in the MIDUS, the HRS, and the NHATS, 4 to almost 20 years later. Across the samples and a meta-analysis, higher neuroticism was related to an older subjective age, whereas higher extraversion, openness, agreeableness, and conscientiousness were associated with a younger subjective age. Self-rated health, physical activity, chronic conditions, and depressive symptoms partially mediated these relationships. There was little evidence that chronological age moderated these associations. Multilevel longitudinal analyses found similar associations with the intercept and weak evidence for an association with the slope in the opposite of the expected direction: Lower neuroticism and higher extraversion, agreeableness, and conscientiousness were related to feeling relatively older over time. The present study provides replicable evidence that personality is related to subjective age. It extends existing conceptualization of subjective age as a biopsychosocial marker of aging by showing that how old or young individuals feel partly reflects personality traits. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Personality and health: Disentangling their between-person and within-person relationship in three longitudinal studies

Personality traits and physical health both change over the life span. Theoretical models and empirical evidence suggest that these changes are related. The current study investigated the dynamic relations between personality traits and physical health at both the between-person and the within-person levels. Data were drawn from three longitudinal studies: the Veterans Affairs Normative Aging Study (NAS; N = 1,734), the Longitudinal Internet Studies for the Social Sciences (LISS; N = 13,559), and the Swedish Adoption/Twin Study of Aging (SATSA, N = 2,209). Using random intercept cross-lagged panel models (RI-CLPMs) and the continuous time (CT) models, after controlling the between-person variance, generally, evidence was found for bidirectional associations between changes in neuroticism and extraversion and changes in self-rated health and general disease level. Bidirectional associations between changes in neuroticism and change in cardiovascular diseases and central nervous system diseases were observed only when time was modeled as continuous. We also found within-person associations between changes in neuroticism and extraversion and changes in performance-based ratings of motor functioning impairment. According to the current findings, the dynamic within-person relations between personality traits and health outcomes were largely in the direction consistent with their between-person connections, although the within-person relationships were substantially smaller in strength when compared their between-person counterparts. Findings from the current study highlight the importance of distinguishing between-person and within-person effects when examining the longitudinal relationship between personality traits and health. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Prospective self- and informant-personality associations with inflammation, health behaviors, and health indicators

OBJECTIVE

Personality influences many aspects of the health process. It is unclear to what extent self- and informant-reports of the Big Five offer incremental validity for the prediction of inflammatory biomarkers and whether inflammation provides a unique pathway between personality and indicators of physical health, independent of health behaviors.

METHOD

Using data from older adults (N = 1,630) enrolled in the St. Louis Personality and Aging Network study, we tested whether self- and informant-reported Big Five traits show unique associations with inflammation (IL-6, CRP, TNF-α). Further, we tested whether inflammation and health behaviors indirectly link personality to health-related quality of life, body mass index, and chronic disease burden using longitudinal mediation in a structural equation modeling framework.

RESULTS

Self-reports, informant-reports, and general trait factors of personality predicted future inflammatory biomarker levels (unstandardized regression coefficients ranged -.08 to .07 for self, -.13 to -.10 for informants, and -.16 to -.11 for general). Additionally, all assessment methods of personality were associated with the indicators of physical health through biomarker and health behavior pathways. Effects were primarily found for conscientiousness and neuroticism; IL-6 and CRP were the biomarkers with the most indirect effects; and indirect paths overall emerged more frequently through health behaviors, but this varied by outcome.

CONCLUSIONS

Self- and informant-reports provided unique predictive validity of inflammatory biomarkers. Findings highlight the benefits of using of multiple assessments of personality and the importance of examining multiple, distinct pathways by which personality might influence health to understand the mechanisms underlying this relationship more fully. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Conscientiousness moderates the relationship between neuroticism and health-risk behaviors among adolescents

Health-Risk-Behaviors (HRBs) are considered significant antecedent conditions of adolescents' poor health and mortality. Prevention of any adverse health outcome requires an in-depth understanding of the risk and protective factors associated with its development and maintenance. Among other potential causal pathways, the "neuroticism- HRBs-adverse health" link has been supported in previous studies. Trait neuroticism has been associated with poor health and HRBs, but several moderators were also observed, which might transform neuroticism into a desirable phenomenon, that is, healthy neuroticism, that leads to better health. Conscientiousness is one such potential moderator; however, the moderating effect of conscientiousness in the neuroticism-HRBs link has not been explored extensively among adolescents, especially in India; therefore, no conclusive evidence is available. Thus, the present study was planned to explore the moderating effect of conscientiousness in the relationship between neuroticism and HRBs among adolescents. The study was conducted in India and its cross-sectional sample, procured through a multi-stage stratified random sampling, consists of 648 (364 males) adolescents (M_age  = 16.08). Participants provided relevant information on standardized questionnaires. Moderated regression analysis was applied to test the stated hypotheses. Individuals high on neuroticism and low on conscientiousness reported more indulgence in health-risk behaviors than individuals high on both neuroticism and conscientiousness. It indicates that a higher level of conscientiousness may reduce the negative impact that neuroticism has on HRBs. The findings imply that the assessment of conscientiousness and strategies to increase the same should be part of interventional programs to achieve adolescents' wellbeing.

Emotion Regulation Difficulties Mediate the Relationship between Neuroticism and Health-Risk Behaviours in Adolescents

Health-Risk-Behaviors (HRBs) are significant antecedent conditions of adolescents' poor health and mortality. Prevention of avoidable adverse health outcomes requires an in-depth understanding of the factors associated with such outcomes. Among other possible pathways, the 'Neuroticism- HRBs-adverse health' link has been supported in previous studies. However, more extensive exploration of this link is required to identify the underlying modifiable risk factors. In the present study, one such factor, namely, emotion regulation difficulties, was explored to see its mediating effect in the relationship between neuroticism and HRBs-the first two constructs of the mentioned link. In this quantitative study, a total of 759 adolescents belonging to the Indian state of Punjab (Males= 402; M(age)=16.08) provided relevant information on a set of standardized questionnaires. Mediation analysis supported the major hypothesis of the present study. The results suggest that emotion regulation difficulty may be a significant mediator in the neuroticism-HRBs link. One's difficulty in regulating emotions might be an underlying mechanism through which high neuroticism increases the probability of indulging in HRBs, resulting in adverse health outcomes. The study implies that the assessment of emotion regulation difficulties should be included in interventional programs aimed at achieving adolescents' wellbeing, and early intervention may avoid progression toward adverse health outcomes in adulthood.

Emotion regulation difficulties, perceived parenting and personality as predictors of health-risk behaviours among adolescents

Health-Risk Behaviours (HRBs) are significant antecedent conditions of adverse health outcomes among adolescents, and their prevention requires an in-depth understanding of associated factors. Like any other behaviour, HRBs may be an outcome of a complex interplay between personal and situational factors that determines our responses. Among other factors, emotional tendencies, specific behavioural patterns, and psychosocial environment may be the significant factors working at different hierarchical positions within a system and guiding human behaviours, including HRBs. Previous studies have explored the role of these specific factors in developing and maintaining HRBs, but mainly among the adult population, and no conclusive results could be observed regarding their contribution to HRBs in adolescents. The present study explored the predictability of adolescents' engagement in HRBs with regard to three representations of the mentioned factors, i.e., emotion regulation difficulties, perceived parenting practices and personality traits. A total of 723 (Males = 440) adolescents (Mage = 16.05, SD = 1.1) provided relevant information on the standardized questionnaires. Structural equation modelling was applied to test the stated hypotheses. Analysis revealed that the adolescents who reported more difficulty regulating one's emotions, perceived parenting practice as maladaptive, scored high on neuroticism and low on conscientiousness, showed more engagement in HRBs than their counterparts. Further, the findings indicated that emotion regulation difficulties and perceived parenting practices are stronger predictors of HRBs than personality traits. Interventional programs targeting HRBs among adolescents should address specific facets of emotional dysregulation and sensitise parents about their role in moderating adolescents' HRBs.

Conscientiousness and Cardiometabolic Risk: A Test of the Health Behavior Model of Personality Using Structural Equation Modeling

BACKGROUND

High trait conscientiousness is associated with lower cardiometabolic risk, and health behaviors are a putative but relatively untested pathway that may explain this association.

PURPOSE

To explore the role of key health behaviors (diet, physical activity, substance use, and sleep) as links between conscientiousness and cardiometabolic risk.

METHODS

In a cross-sectional analysis of 494 healthy, middle-aged working adults (mean age = 42.7 years, 52.6% women, 81.0% White), participants provided self-reports of conscientiousness, physical activity, substance use, diet, and sleep, and wore monitors over a 7-day monitoring period to assess sleep (Actiwatch-16) and physical activity (SenseWear Pro3). Cardiometabolic risk was expressed as a second-order latent variable from a confirmatory factor analysis involving insulin resistance, dyslipidemia, obesity, and blood pressure. Direct, indirect, and specific indirect effect pathways linking conscientiousness to health behaviors and cardiometabolic risk were examined. Unstandardized indirect effects for each health behavior class were computed separately using bootstrapped samples.

RESULTS

After controlling for demographics (sex, age, race, and education), conscientiousness showed the predicted, inverse association with cardiometabolic risk. Among the examined health behaviors, objectively-assessed sleep midpoint variability (b = -0.003, p = .04), subjective sleep quality (b = -0.003, p = .025), and objectively-assessed physical activity (b = -0.11, p = .04) linked conscientiousness to cardiometabolic risk.

CONCLUSIONS

Physical activity and sleep partially accounted for the relationship between conscientiousness and cardiometabolic risk.

Personality traits are consistently associated with blood mitochondrial DNA copy number estimated from genome sequences in two genetic cohort studies

Background

Mitochondrial DNA copy number (mtDNAcn) in tissues and blood can be altered in conditions like diabetes and major depression and may play a role in aging and longevity. However, little is known about the association between mtDNAcn and personality traits linked to emotional states, metabolic health, and longevity. This study tests the hypothesis that blood mtDNAcn is related to personality traits and mediates the association between personality and mortality.

Methods

We assessed the big five personality domains and facets using the Revised NEO Personality Inventory (NEO-PI-R), assessed depressive symptoms with the Center for Epidemiologic Studies Depression Scale (CES-D), estimated mtDNAcn levels from whole-genome sequencing, and tracked mortality in participants from the Baltimore Longitudinal Study of Aging. Results were replicated in the SardiNIA Project.

Results

We found that mtDNAcn was negatively associated with the Neuroticism domain and its facets and positively associated with facets from the other four domains. The direction and size of the effects were replicated in the SardiNIA cohort and were robust to adjustment for potential confounders in both samples. Consistent with the Neuroticism finding, higher depressive symptoms were associated with lower mtDNAcn. Finally, mtDNAcn mediated the association between personality and mortality risk.

Conclusions

To our knowledge, this is the first study to show a replicable association between mtDNAcn and personality. Furthermore, the results support our hypothesis that mtDNAcn is a biomarker of the biological process that explains part of the association between personality and mortality.

Funding

Support for this work was provided by the Intramural Research Program of the National Institute on Aging (Z01-AG000693, Z01-AG000970, and Z01-AG000949) and the National Institute of Neurological Disorders and Stroke of the National Institutes of Health. AT was also supported by the National Institute on Aging of the National Institutes of Health Grant R01AG068093.

The conscientiousness-health link in depression: Results from a path analysis

BACKGROUND

This was the first study aiming to develop a theory-based model to analyze the relation between conscientiousness and impaired physical health as well as between conscientiousness and subjective health-related well-being within a large clinical sample with depressive symptomatology. In addition, a mediating effect of health risk behaviors regarding the association between conscientiousness and objectively impaired physical health as well as subjective health-related well-being were exploratory examined.

METHODS

Individuals with depressive symptoms (n = 943) with a mean age of 52 years (ranging between 20 and 78 years) undergoing intensive psychiatric rehabilitation treatment were investigated with the Big Five Inventory-10 as well as several self-report health questionnaires (Three-Factor Eating Questionnaire, Food-Craving Inventory and lifestyle questions assessing physical inactivity and alcohol consumption). Health-related well-being was measured using the World Health Organisation Quality of Life Assessment and the construct of impaired physical health comprised anthropometric measurements (Body Mass Index, Waist-to-Height-Ratio), blood lipids, and impaired physical performance capacity on the bicycle-ergometric test.

RESULTS

Structural path analyses revealed that unhealthy eating habits and physical inactivity partially mediated the negative relation between conscientiousness and impaired physical health as well as the positive relation between conscientiousness and health-related well-being.

LIMITATIONS

Possible limitations include cross-sectional study design, missing data, assessment of conscientiousness on a global level and self-report assessment of health risk behaviors.

CONCLUSIONS

The findings highlight the importance concerning the extended inclusion of personality aspects in the treatment of depression in order to improve health.

Personality predictors of emergency department post-discharge outcomes

Personality traits are important predictors of health behaviors, healthcare utilization, and health outcomes. However, we know little about the role of personality traits for emergency department outcomes. The present study used data from 200 patients (effective Ns range from 84 to 191), who were being discharged from the emergency department at an urban hospital, to investigate whether the Big Five personality traits were associated with post-discharge outcomes (i.e., filling prescriptions, following up with primary care physician, making an unscheduled return to the emergency department). Using logistic regression, we found few associations among the broad Big Five domains and post-discharge outcomes. However, results showed statistically significant associations between specific Big Five items (e.g., “responsible”) and the three post-discharge outcomes. This study demonstrates the feasibility of assessing personality traits in an emergency medicine setting and highlights the utility of having information about patients’ personality tendencies for predicting post-discharge compliance.

Psychological well-being and alcohol misuse among community-based veterans: results from the Veterans' Health Study

BACKGROUND

Maladaptive drinking is an increasing concern among military policy makers and healthcare providers. The goal of this study was to assess how social and psychological factors relate to alcohol problems among post-deployed US veterans and how problematic drinking is associated with well-being.

METHODS

Data were collected via a telephone survey from a random sample of veterans receiving their healthcare from a large non-VA hospital system in central Pennsylvania (N = 1730). Interviewers inquired about participants' current alcohol consumption, using the CAGE and AUDIT-C scales, and health-related outcomes (general psychological distress, major depression, and self-reported health status). Analyses included demographic, military and nonmilitary stressful events, use of alcohol or drugs to cope post-deployment, use of psychiatric services, and personality characteristics as independent variables. Our sample was 95% male, 96% White, and had a mean age of 59 years old (SD = 12 years).

RESULTS

Analyses included demographic, military and nonmilitary stressful events, use of alcohol or drugs to cope post-deployment, use of psychiatric services, and personality characteristics as independent variables. Our sample was 95% male, 96% White, and had a mean age of 59 years old (SD = 12 years). Analyses for our drinking measures show that those who used drugs or alcohol to cope post-deployment were more likely to be problematic drinkers, while positive personality characteristics such as agreeableness and conscientiousness were related to fewer drinking problems. Multivariate logistic regressions for our well-being measures found that alcohol misuse was not related to distress or depression, but that a positive score on the AUDIT-C was associated with a lower likelihood of poor self-rated health. Using alcohol or drugs to cope was related to higher distress.

DISCUSSION

We conclude that service providers might consider using post-deployment AUDIT-C and the drugs and alcohol coping questions when screening for possible alcohol and mental health problems among veterans.

Vital personality scores and healthy aging: Life-course associations and familial transmission

OBJECTIVES

Personality traits are linked with healthy aging, but it is not clear how these associations come to manifest across the life-course and across generations. To study this question, we tested a series of hypotheses about (a) personality-trait prediction of markers of healthy aging across the life-course, (b) developmental origins, stability and change of links between personality and healthy aging across time, and (c) intergenerational transmission of links between personality and healthy aging. For our analyses we used a measure that aggregates the contributions of Big 5 personality traits to healthy aging: a "vital personality" score.

METHODS

Data came from two population-based longitudinal cohort studies, one based in New Zealand and the other in the UK, comprising over 6000 study members across two generations, and spanning an age range from birth to late life.

RESULTS

Our analyses revealed three main findings: first, individuals with higher vital personality scores engaged in fewer health-risk behaviors, aged slower, and lived longer. Second, individuals' vital personality scores were preceded by differences in early-life temperament and were relatively stable across adulthood, but also increased from young adulthood to midlife. Third, individuals with higher vital personality scores had children with similarly vital partners, promoted healthier behaviors in their children, and had children who grew up to have more vital personality scores themselves, for genetic and environmental reasons.

CONCLUSION

Our study shows how the health benefits associated with personality accrue throughout the life-course and across generations.

Mental Health and Personality Traits during COVID-19 in China: A Latent Profile Analysis

During the COVID-19 pandemic, mental health problems have increased and are likely to be influenced by personality traits. The present study investigated the association between personality traits and mental health problems (anxiety, depression, post-traumatic stress syndrome (PTSD) symptoms, and obsessive-compulsive disorder (OCD) symptoms) through the person-centered approach because this has some advantages over the variable-centered approach. The data were collected from a sample of 765 Chinese citizens who participated in an online survey in October 2020. Latent profile analysis identified three latent personality profiles-highly adaptive, adaptive, and maladaptive. Highly adaptive individuals had higher extroversion, agreeableness, conscientiousness, openness, and lower neuroticism, while maladaptive individuals had lower extroversion, agreeableness, conscientiousness, openness, and higher neuroticism. Multivariate analysis of variance results showed that individuals with highly adaptive profiles had lower anxiety, depression, and PTSD symptoms compared to individuals with adaptive and maladaptive profiles. The findings of the present study indicate mental health professionals would benefit from formulated intervention plans given the association between latent personality profiles and mental health problems.

A Successful Aging Model Based on Personal Resources, Self-Care, and Life Satisfaction

The most internationally studied models of successful aging defend that there are several pillars for a good aging: absence of disease, good cognitive and physical function, a high commitment and social activity, social capital, personal resources, life satisfaction, and spirituality. This study examines the relationships between personal resources, perceived social support, hope, spirituality, self-care and subjective well-being variables, as bases for a successful aging. One thousand and sixteen community-dwelling Spanish adults, aged 55-92 years, participated in the study. Information on variables assessed was collected using self-reported questionnaires. Confirmatory Factor Analyses and Structural models with latent variables relating all indicators and factors were estimated. The structural model positing background variables affecting personal resources which then affected self-care behaviors and finally affected life satisfaction was supported by the data. The model results emphasize the importance of personality, because largely affects the use of personal resources. The three selected personal resources (support, hope and spirituality) favor self-care behaviors. And finally, these behaviors improved life satisfaction in the old age. This result is of particular importance when policies for a successful and satisfactory aging of the population have to be designed.

Personality correlates of COVID-19 infection proclivity: Extraversion kills

The current research sought to shed light on the behavioral science that underlies the spread of SARS-CoV-2. We tested the extraversion hypothesis, which suggests that the sociability facet of extraversion may predispose people to becoming infected with the coronavirus via greater human-to-human contact. Since extraverts seek out social opportunities and seem less likely to follow containment measures related to social distancing, we hypothesized that people who have previously become infected would exhibit greater extraversion than would those who have not contracted the virus. We measured overall extraversion and three of its facets-sociability, assertiveness, and energy levels-as well as political orientation. We collected data from 217 adults, aged 40 and older, from the US and the UK, of whom 53 had had the virus at some point prior to the study, and 164 had not. Participants who had had COVID-19 were more dispositionally sociable and were also more conservative-leaning compared to participants who had never had COVID-19. Implications regarding the behavioral science underlying the current pandemic are discussed.

Personality Traits Predict Long-Term Physical Health via Affect Reactivity to Daily Stressors

Researchers hypothesize that how people react to daily stressful events partly explains the relationship between personality and health, yet no study has examined longitudinal associations between these factors. The current study focused on the role of negative affect reactivity to daily stressful events as a mediating pathway between personality and physical health outcomes using three waves of data spanning 20 years from a nationwide probability sample of 1,176 adults. Results indicated that negative affect reactivity partially mediated personality and physical health. Wave 1 neuroticism was associated with greater negative affect reactivity at Wave 2, which predicted the development of chronic conditions and functional limitations at Wave 3. Higher conscientiousness at Wave 1 was associated with less negative affect reactivity at Wave 2, which predicted better physical health at Wave 3. These findings highlight the usefulness of using a daily-stress framework for understanding how personality impacts health over time, which has important implications for stress management and disease prevention.

Personality pathways to mortality: Interleukin-6 links conscientiousness to mortality risk

Personality is associated consistently with mortality hazards, but the physiological pathways are not yet clear. Immune system dysregulation may be one such pathway due to its role in age-related morbidity and mortality. In this preregistered study, we tested whether interleukin-6 (IL-6) and C-reactive protein (CRP) mediated the associations between personality traits and mortality hazards. The sample included 957 participants (M ± SD = 58.65 ± 11.51 years; range = 35-86 years) from the Midlife in the United States Survey that had 14 years of follow-up. Higher conscientiousness was associated with lower mortality hazards, with each one standard deviation higher conscientiousness associated with a 35% lower mortality risk. IL-6, but not CRP, partially mediated this association, with IL-6 accounting for 18% of this association in the fully adjusted model. While there was initial evidence that the biomarkers mediated both neuroticism and agreeableness and mortality risk, the indirect effects were not significant when controlling for the sociodemographic variables. Taken together, higher conscientiousness may lead to a longer life partially as a result of lower IL-6. This work highlights the importance of biological pathways that link personality to future mortality risk.

Is there a relationship between personality traits and fruit and vegetable intake among pregnant women?

Previous studies have shown that certain personality traits such as neuroticism and conscientiousness influence dietary choices. Pregnancy is a unique period in a woman’s life during which most women are highly intrinsically and extrinsically motivated to start a diet rich in fruit and vegetables. Yet, an adequate consumption of fruits and vegetables remains a challenge for many women. The present study investigates the relationships between personality traits and fish, dairy, fruit, and vegetable intake. Data was collected from 602 pregnant women and analyzed using descriptive statistics and hierarchical regression analyses in order to examine predictive relationships between the variables of interest. The results demonstrated that high scores in openness to experience, older maternal age, higher income, and educational attainment were positively associated with increased fish, vegetable, and fruit intake. These findings have important implications for interventions that seek to improve eating behaviors of pregnant women, thereby increasing the health of their pregnancies.

Targeting self-control as a behavior change mechanism to increase physical activity: Study protocol of a randomized controlled trial

Despite the highly publicized beneficial effects of physical activity, 51.1% of middle-aged US adults do not achieve the recommended minimum of aerobic physical activity needed to maintain health. A sedentary lifestyle can be attributed in part to a lack of self-control and there is some evidence that self-control strategies can be improved with targeted interventions. The overall aim of this study is to test self-control as a behavior change mechanism for physical activity and to investigate whether a smartphone-based self-control intervention can increase physical activity among sedentary middle-aged adults. This protocol describes the design of a randomized controlled trial with two experimental conditions: The self-control treatment group and the control group. Both groups track their daily physical activity using a Fitbit step counter for eight weeks. Additionally, the self-control intervention group receives a 7-week smartphone-based self-control intervention to learn strategies how to potentiate desirable impulses or weaken undesirable ones. It is expected that the self-control treatment group will show greater increases in physical activity and that changes last longer compared to the control group. All participants will be assessed at pretest (baseline), at the end of each week (weeks 1-7), at posttest (week 8), and at follow-up (week 12). If this self-control intervention proves effective, this digital approach would represent a low-threshold and cost-effective approach to increasing physical activity. Such an intervention could be delivered to a large number of people to improve their health outcomes in the long run. Trial Registration:ClinicalTrials.gov: NCT04522141.

Personality and impulsivity as predictors of tobacco use among emerging adults: A latent class analysis

The tobacco industry markets their products toward emerging adults (18-29), with the goal of increasing use among this age group. To inform prevention efforts, researchers are investigating how specific demographic and psychological traits may predict tobacco initiation and continuation. Participants were 578 incoming university freshmen from the Appalachian region. Participants provided information on demographics, personality traits, impulsivity characteristics, lifetime use of cigarettes and electronic cigarettes (ECIGs), and current use of cigarettes, ECIGs, small cigars/cigarillos, large cigars, smokeless tobacco, and waterpipe. Latent class analysis identified tobacco-use classes and regressions identified psychological predictors of class membership. Participants were Nonusers, Experimenters, and Polytobacco Users. Lower agreeableness and conscientiousness as well as higher extraversion and neuroticism were associated with being Experimenters or Polytobacco Users. Lower impulsivity was associated with being Nonusers. Distinct types of emerging adults belong to each tobacco use class, suggesting that individual differences be incorporated in prevention efforts.

Health risk perceptions in the era of the new coronavirus: are the Italian people ready for a novel virus? A cross-sectional study on perceived personal and comparative susceptibility for infectious diseases

OBJECTIVES

This study aims to evaluate the impact of psychological and sociodemographic variables on perceived personal and comparative susceptibility to diseases caused by a novel, unknown virus.

STUDY DESIGN

Cross-sectional study.

METHODS

A total of 438 adults (200 male and 238 female) were interviewed in the waiting rooms of three primary care medicine outpatient clinics. The participants completed three validated questionnaires: the Italian Adjustment of Risk Perception of Infectious Diseases questionnaire, the General Self-Efficacy (GSE) scale, and the Italian Version of Personality Inventory (ITAPI).

RESULTS

Only 5% of the respondents believed it likely that they would contract a disease caused by a novel virus in the following months, even though 5.9% considered this probability higher than that of other people of the same age and gender. Gender (P < .04), age (P = .002), and marital status (P = .002) significantly affected the perceived risk of getting a disease caused by a novel virus. Self-efficacy (P < .001), imagination (P < .001), and empathy (P < .001) were significant predictors of perceived personal susceptibility. Self-efficacy (P = .04) and imagination (P = .04) were predictive of perceived comparative susceptibility.

CONCLUSIONS

Adequate psycho-educational interventions are necessary to empower the population in adopting the necessary prevention and containment measures aimed at limiting the spread of novel diseases such as COVID-19 and avoiding disastrous consequences both at the health and economic level.

Is Healthy Neuroticism Associated with Longevity? A Coordinated Integrative Data Analysis

Individual differences in the Big Five personality traits have emerged as predictors of health and longevity. Although there are robust protective effects for higher levels of conscientiousness, results are mixed for other personality traits. In particular, higher levels of neuroticism have significantly predicted an increased risk of mortality, no-risk at all, and even a reduced risk of dying. The current study hypothesizes that one potential reason for the discrepancy in these findings for neuroticism is that interactions among neuroticism and other key personality traits have largely been ignored. Thus, in the current study we focus on testing whether the personality traits neuroticism and conscientiousness interact to predict mortality. Specifically, we borrow from recent evidence of "healthy neuroticism" to explore whether higher levels of neuroticism are only a risk factor for increased mortality risk when conscientiousness levels are low. We conducted a pre-registered integrative data analysis using 12 different cohort studies (total N = 44,702). Although a consistent pattern emerged of higher levels of conscientiousness predicting a reduced hazard of dying, neuroticism did not show a consistent pattern of prediction. Moreover, no study provided statistical evidence of a neuroticism by conscientiousness interaction. The current findings do not support the idea that the combination of high conscientiousness and high neuroticism can be protective for longevity. Future work is needed to explore different protective factors that may buffer the negative effects of higher levels of neuroticism on health, as well as other behaviors and outcomes that may support the construct of healthy neuroticism.

Are personality traits associated with smoking and alcohol use prior to and during pregnancy?

Cigarette smoking and alcohol consumption during pregnancy can have detrimental effects on the developing fetus, including fetal alcohol syndrome and low birth weight. Surprisingly little is known about the association of personality traits with smoking and alcohol consumption in the specific subpopulation of pregnant women. This study analyzed data from a geographically diverse sample of 603 pregnant women, aged 18 years and older, who provided information regarding their smoking and drinking habits before and during pregnancy. We compared women who consumed alcohol or smoked cigarettes before pregnancy with women who quit or continued smoking or drinking during pregnancy. Associations between personality and maladaptive behaviors prior to and during pregnancy were modeled using logistic regression. The study revealed that women who scored high on openness to experience were significantly more likely to continue alcohol consumption during pregnancy (OR = 1.07, 95% CI 1.01, 1.14, p = .02). This association was maintained after adjusting for potential confounds. This study demonstrated a significant relationship between personality traits and women's likelihood of continued alcohol consumption prior to and during pregnancy. Understanding personality-based determinants of health-detrimental behavior is important in order to design interventions that aim at decreasing rates of maladaptive health behaviors among pregnant women.

Personality and Incident Alzheimer's Disease: Theory, Evidence, and Future Directions

Personality, especially the dimensions of neuroticism and conscientiousness, has prospectively predicted the risk of incident Alzheimer's disease (AD). Such a relationship could be explained by personality and AD risk having a common cause such as a gene; by personality creating a predisposition for AD through health behavior or inflammation; by personality exerting a pathoplastic effect on the cognitive consequences of neuropathology; or by AD and personality change existing on a disease spectrum that begins up to decades before diagnosis. Using the 5-dimensional taxonomy of personality, the present review describes how these models might arise, the evidence for each, and how they might be distinguished from one another empirically. At present, the evidence is sparse but tends to suggest predisposition and/or pathoplastic relationships. Future studies using noninvasive assessment of neuropathology are needed to distinguish these 2 possibilities.

MindHike, a Digital Coaching Application to Promote Self-Control: Rationale, Content, and Study Protocol

This protocol describes a study that will test the effectiveness of a 7-week non-clinical digital coaching intervention to promote self-control. The goal of the coaching is to support and guide people who are willing and motivated to improve their self-control with the help of the smartphone application MindHike. The coaching is based on a process model of self-control and aims to target five groups of self-control strategies. The goal of the study is to examine the effectiveness of the digital coaching intervention. A single-arm study design with pre-test, post-test and 2-month follow-up assessments and process assessments will be used to evaluate the 7-week digital coaching intervention. The digital coaching includes 49 daily lessons that are organized along 7 weekly core themes. Study participants will be at least 150 adults aged 18 years and older who are willing and motivated to improve their self-control using the MindHike application. This is the first study testing the effectiveness of a digital coaching intervention to promote self-control. Given that this approach proves effective, it could be easily implemented in various non-clinical settings such as education, health, relationship, and work, and in clinical settings. Due to its digital low-threshold character, it could also reach large numbers of people.

Is Healthy Neuroticism Associated with Health Behaviors? A Coordinated Integrative Data Analysis

Current literature suggests that neuroticism is positively associated with maladaptive life choices, likelihood of disease, and mortality. However, recent research has identified circumstances under which neuroticism is associated with positive outcomes. The current project examined whether "healthy neuroticism", defined as the interaction of neuroticism and conscientiousness, was associated with the following health behaviors: smoking, alcohol consumption, and physical activity. Using a pre-registered multi-study coordinated integrative data analysis (IDA) approach, we investigated whether "healthy neuroticism" predicted the odds of engaging in each of the aforementioned activities. Each study estimated identical models, using the same covariates and data transformations, enabling optimal comparability of results. These results were then meta-analyzed in order to estimate an average (N-weighted) effect and to ascertain the extent of heterogeneity in the effects. Overall, these results suggest that neuroticism alone was not related to health behaviors, while individuals higher in conscientiousness were less likely to be smokers or drinkers, and more likely to engage in physical activity. In terms of the healthy neuroticism interaction of neuroticism and conscientiousness, significant interactions for smoking and physical activity suggest that the association between neuroticism and health behaviors was smaller among those high in conscientiousness. These findings lend credence to the idea that healthy neuroticism may be linked to certain health behaviors and that these effects are generalizable across several heterogeneous samples.

The Mediating Effect of Life-style Behaviors on the Association Between Personality Traits and Cardiovascular Disease Mortality Among 29,766 Community-Dwelling Japanese

OBJECTIVE

Personality traits have been associated with an increased risk of cardiovascular disease (CVD) mortality as well as life-style-related cardiovascular risk factors. However, the mediating effects of life-style behaviors in the association between personality factors and CVD mortality remain insufficiently understood. The aim of the present study was to examine the mediating effect of life-style behaviors on the association between personality traits and CVD mortality.

METHODS

We conducted a prospective cohort study of 29,766 Japanese adults aged 40 to 64 years at the baseline and followed them up for 20.8 years from 1990 to 2011. Personality was measured using the Japanese version of the Eysenck Personality Questionnaire - Revised Short Form in 1990. We estimated the multivariable hazard ratio and 95% confidence interval for CVD mortality using Cox proportional hazards models, and explored the mediating effects of life-style behaviors (smoking, drinking, body mass index, and time spent walking) on the association between personality traits and CVD mortality.

RESULTS

We documented 1033 deaths due to CVD during 562,446 person-years of follow-up. Psychoticism represents tough-mindedness, aggressiveness, coldness, a lack of deliberateness, and egocentricity. After adjusting for confounding variables, higher psychoticism was associated with CVD mortality (base model hazard ratio = 1.36, 95% confidence interval = 1.14-1.61, p trend < .001). All the life-style behaviors together mediated this association by 19.2%, with smoking having the greatest effect at 15.7%. For the other personality traits, no significant associations with CVD mortality were found.

CONCLUSION

The present study demonstrated that life-style behaviors, especially smoking, partially mediate the association between psychoticism and CVD mortality.

Maladaptive Personality Traits and 10-Year Course of Psychiatric and Medical Symptoms and Functional Impairment Following Trauma

Background

Personality is a major predictor of many mental and physical disorders, but its contributions to illness course are understudied.

Purpose

The current study aimed to explore whether personality is associated with a course of psychiatric and medical illness over 10 years following trauma.

Methods

World Trade Center (WTC) responders (N = 532) completed the personality inventory for DSM-5, which measures both broad domains and narrow facets. Responders' mental and physical health was assessed in the decade following the WTC disaster during annual monitoring visits at a WTC Health Program clinic. Multilevel modeling was used in an exploratory manner to chart the course of health and functioning, and examine associations of maladaptive personality domains and facets with intercepts (initial illness) and slopes (course) of illness trajectories.

Results

Three maladaptive personality domains-negative affectivity, detachment and psychoticism-were uniquely associated with initial posttraumatic stress disorder (PTSD); detachment and psychoticism were also associated with initial functional impairment. Five facets-emotional lability, anhedonia, callousness, distractibility and perceptual dysregulation-were uniquely associated with initial mental and physical health and functional impairment. Anxiousness and depressivity facets were associated with worse initial levels of psychiatric outcomes only. With regard to illness trajectory, callousness and perceptual dysregulation were associated with the increase in PTSD symptoms. Anxiousness was associated with greater persistence of respiratory symptoms.

Conclusions

Several personality domains and facets were associated with initial levels and long-term course of illness and functional impairment in a traumatized population. Results inform the role of maladaptive personality in the development and maintenance of chronic mental-physical comorbidity. Personality might constitute a transdiagnostic prognostic and treatment target.

Immediate and 15-Week Correlates of Individual Commitment to a "Green Monday" National Campaign Fostering Weekly Substitution of Meat and Fish by Other Nutrients

Promoting healthier and more sustainable diets by decreasing meat consumption represents a significant challenge in the Anthropocene epoch. However, data are scarce regarding the effects of nationwide meat reduction campaigns. We described and analyzed the correlates of a national campaign in France (called “Green Monday”, GM) promoting the weekly substitution of meat and fish by other nutrients. Two cross-sectional online surveys were compared: a National Comparison sample (NC) of the French general population and a self-selected sample of participants who registered for the Green Monday campaign. A follow-up study was carried out in the GM sample, in which participants were asked during 15 weeks whether or not they had substituted meat and fish. There were 2005 participants aged 18–95 (47.7% females) in the NC sample and 24,507 participants aged 18–95 (77.5% females) in the GM sample. One month after the beginning of the campaign, 51.2% of the respondents reported they had heard about Green Monday in the NC sample, and 10.5% indicated they had already started to apply Green Monday. Logistic regression analysis showed that compared to the NC sample, participants belonging to the GM sample displayed a higher rate of females, Odds Ratio (OR) = 4.26, 95% Confidence Interval (CI): 3.86–4.71, were more educated, OR = 1.32, 95% CI: 1.28–1.36, had higher self-rated affluence, OR = 1.50, 95% CI: 1.42–1.58 and the size of their vegetarian network was greater, OR = 1.50, 95% CI: 1.41–1.58. They reported a slightly higher frequency of meat consumption, OR = 1.05, 95% CI: 1.01–1.10, while their frequency of fish consumption was lower, OR = 0.81, 95% CI: 0.76–0.87. Finally, the personality dimension Openness was more strongly endorsed by participants in the GM sample, OR = 1.79, 95% CI: 1.65–1.93. A multiple regression analysis indicated that Openness also predicted the number of participation weeks in the GM Sample (beta = 0.03, p < 0.009). In conclusion, specific demographic and personality profiles were more responsive to the national campaign, which could inform and help to shape future actions aiming at changing food habits.

The Role of Personality in Becoming Aware of Age-Related Changes

Awareness of age-related change (AARC) refers to an individual's conscious knowledge about the gains and losses resulting from growing older. Personality traits reflect dispositional patterns of behavior, perception, and evaluation and should therefore influence the experience of AARC. The 4.5-year longitudinal study examines this association between personality traits and AARC in a sample of 423 individuals aged 40 to 98 years (M = 62.9 years) using latent change analyses. After controlling for sex, health, and education, a different pattern of associations for cross-sectional vs. longitudinal relations. Cross-sectionally, neuroticism was positively related to AARC losses, whereas openness, conscientiousness, and neuroticism were positively related to AARC gains. Longitudinally, the impact of personality traits on change in AARC was rather limited with only higher conscientiousness acting as a predictor of decreases in AARC losses over time. Overall, the findings add to the existing literature on associations between personality traits and subjective aging. Specifically, the results indicate that personality traits are differentially related to awareness of age-related gains in comparison to awareness of age-related losses.

Sleep: A Pathway Linking Personality to Mortality Risk

Personality and sleep predict longevity; however, no investigation has tested whether sleep mediates this association. Thus, we tested this effect across a 20-year follow-up (N = 3,759) in the Midlife Development in the United States cohort (baseline M _age = 47.15) using proportional hazards in a structural equation modeling framework. Lower conscientiousness predicted increased death risk via the direct, indirect, and total effect of quadratic sleep duration. Although there were no other direct personality-mortality effects, higher neuroticism and agreeableness and lower conscientiousness predicted increased death risk via the joint indirect effects of quadratic sleep duration and higher daytime dysfunction. Lower extraversion predicted increased mortality risk via the indirect effect of daytime dysfunction. Our findings have implications for personality-based health interventions.

Big Five personality traits and allostatic load in midlife

Objective: To examine the cross-sectional associations of Big Five personality traits with midlife allostatic load, including the role of sex, socio-demographic factors and health-related behaviours. Design: Cross-sectional analyses of 5512 members of the Copenhagen Aging and Midlife Biobank, aged 49-63 years, 69% men. Main outcome measure: Allostatic load (AL) based on 14 biomarkers representing the inflammatory, cardiovascular and metabolic system. Results: Due to significant sex × trait interactions, analyses were stratified by sex. Openness and Conscientiousness were inversely associated with AL in both sexes, and Extraversion was positively associated with AL in men. Adjusting for socio-demographic factors significantly attenuated the association of Openness in both sexes and of Extraversion in men, for whom the inverse association of Agreeableness with AL was strengthened. Further adjusting for health-related behaviours, the Conscientiousness-AL association was attenuated but remained significant, and Agreeableness remained significantly associated with AL in men. Conclusion: Results imply that higher levels of Agreeableness (in men) and Conscientiousness are associated with lower levels of AL above and beyond socio-demographic factors and health-related behaviours. The study further contributes by demonstrating the relevance of sex × trait and trait × trait interactions in the personality-health literature.