1
|
Higuchi Y, Matsumoto N, Fujiwara S, Ebuchi Y, Furujo M, Nakamura K, Kubo T, Yorifuji T. Association between infant breastfeeding practices and timing of peak height velocity: A nationwide longitudinal survey in Japan. Pediatr Res 2023; 94:1845-1854. [PMID: 37400541 PMCID: PMC10624627 DOI: 10.1038/s41390-023-02706-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/10/2023] [Accepted: 06/08/2023] [Indexed: 07/05/2023]
Abstract
BACKGROUND Several studies have discovered an association between infant feeding practices and puberty timing; however, most have involved female cohorts. We investigated the association between infant feeding practices and the timing of peak height velocity in boys and girls. METHODS Data on infant feeding methods and anthropometric measurements were collected from a nationwide Japanese birth cohort study. The age at peak height velocity (APV, years) was estimated and compared. Subsequently, the effects of breastfeeding duration were analyzed. RESULTS Of the 13,074 eligible participants, 650, 9455, and 2969 were formula-, mixed-, and exclusively breastfed, respectively. Among girls, the mean APV was significantly later in the mixed-fed (standardized regression coefficient (β): 0.094, 95% confidence interval (CI): 0.004-0.180) and exclusively breastfed (β: 0.150, 95% CI: 0.056-0.250) groups than in the formula-fed group. Among boys, the mean APV was not significantly different among the three groups; however, a sensitivity analysis that excluded preterm birth revealed more significantly delayed APV in the breastfed-only group compared to the formula-fed group. Furthermore, a multiple linear regression model revealed that a longer breastfeeding period was associated with later APV. CONCLUSIONS Infant breastfeeding practices can affect the timing of peak height velocity in both boys and girls. IMPACT Several studies have discovered an association between infant feeding practices and puberty timing; however, most have involved female cohorts. Age at peak height velocity, derived from longitudinal height measurements, is a useful marker of secondary sexual maturity milestones in boys and girls. A Japanese birth cohort study revealed that breastfed children had a later age at peak height velocity than their formula-fed counterparts; this was more prominent among girls than boys. Furthermore, a duration-effect relationship was observed, where longer breastfeeding duration was associated with a later age at peak height velocity.
Collapse
Affiliation(s)
- Yousuke Higuchi
- Department of Pediatrics, National Hospital Organization Okayama Medical Center, 1711-1 Tamasu, Kita-ku, Okayama, 701-1192, Japan.
| | - Naomi Matsumoto
- Department of Epidemiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Shintaro Fujiwara
- Department of Pediatrics, National Hospital Organization Okayama Medical Center, 1711-1 Tamasu, Kita-ku, Okayama, 701-1192, Japan
| | - Yuki Ebuchi
- Department of Pediatrics, National Hospital Organization Okayama Medical Center, 1711-1 Tamasu, Kita-ku, Okayama, 701-1192, Japan
| | - Mahoko Furujo
- Department of Pediatrics, National Hospital Organization Okayama Medical Center, 1711-1 Tamasu, Kita-ku, Okayama, 701-1192, Japan
| | - Kazue Nakamura
- Division of Neonatology, National Hospital Organization Okayama Medical Center, 1711-1 Tamasu, Kita-ku, Okayama, 701-1192, Japan
| | - Toshihide Kubo
- Department of Pediatrics, National Hospital Organization Okayama Medical Center, 1711-1 Tamasu, Kita-ku, Okayama, 701-1192, Japan
| | - Takashi Yorifuji
- Department of Epidemiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| |
Collapse
|
2
|
Prenatal Exposure to Parental Lifestyle Factors, Diseases, and Use of Medications and Male Pubertal Development: a Review of Epidemiological Studies Published 2017–2022. CURR EPIDEMIOL REP 2023. [DOI: 10.1007/s40471-023-00320-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
|
3
|
Diet and Nutrients Intakes during Infancy and Childhood in Relation to Early Puberty: A Systematic Review and Meta-Analysis. Nutrients 2022; 14:nu14235004. [PMID: 36501034 PMCID: PMC9739867 DOI: 10.3390/nu14235004] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/17/2022] [Accepted: 11/19/2022] [Indexed: 11/27/2022] Open
Abstract
The onset of puberty has become earlier over the decades, and nutrients and diet are related to the timing of puberty onset. Hence, we aimed to investigate the association between diet or nutrients in infancy, childhood and early puberty. PubMed, Embase, and Cochrane library were searched systematically up to 15 April 2022. The pooled relative risks (RRs) or regression coefficients (beta) were estimated using the random-effect model or fixed-effect model according to the heterogeneity between studies. Twenty-two articles on diet or nutrients in childhood and six about breastfeeding in infancy were included. The prolonged breastfeeding duration in infancy could reduce the risk of early menarche (beta 0.31, 95% CI: 0.01, 0.60, p = 0.045). The high intake of yogurt was associated with a 35% reduction in the risk of earlier menarche (RR 0.65, 95% CI: 0.47, 0.89, p = 0.008). Girls with severe food insecurity experienced later menarche (RR 0.81, 95% CI: 0.67, 0.98, p = 0.027). Conversely, due to the high intake of protein, the risk of early menarche increased by 8% (RR 1.08, 95% CI: 1.01, 1.16, p = 0.016). High intake of yogurt, longer duration of breastfeeding, and food insecurity decreased the possibility of earlier menarche, while high intake of protein increased that risk. As a modifiable factor, diet and nutrients in infancy and childhood provide new insights into the future prevention of early puberty.
Collapse
|
4
|
Feuillâtre C, Beaumont J, Elamin F. Reproductive life histories: can incremental dentine isotope analysis identify pubertal growth, pregnancy and lactation? Ann Hum Biol 2022; 49:171-191. [PMID: 35786239 DOI: 10.1080/03014460.2022.2091795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
BACKGROUND There are few reliable osteological indicators to detect parity or infer puberty in skeletal remains. Nitrogen (δ15N) and stable carbon (δ13C) isotope ratios in human tissues can be affected by metabolically unbalanced states engendered by pregnancy or rapid growth, offering potential biomarkers. AIM This pilot study explores the potential of incremental dentine-collagen isotope ratio analysis to identify puberty and gestation. SUBJECTS AND METHODS Incremental dentine δ15N and δ13C profiles were produced by analysing third molars extracted as part of dental treatment of 10 individuals living in Sudan. Demographic and anthropometric data at the time of tooth extraction was available. Medical histories were unknown. RESULTS Isotopic signatures potentially related to pubertal growth, with an average δ15N reduction of 0.78 ± 0.29‰, are indicated. Six isotopic signals suggestive of pregnancy, with an average δ15N decrease of 0.48 ± 0.22‰, are also observed. The timing, speed and amplitude of post-partum δ15N patterns seemingly infer infant feeding practices and maternal nutritional status. CONCLUSION This pilot study highlights the potential of incremental dentine isotope analysis for the reconstruction of early reproductive histories in skeletal remains. However, controlled studies with a larger human cohort are needed to validate these findings, establish isotopic signals linked to puberty and lactation, and improve chronology accuracy.
Collapse
Affiliation(s)
- Corinne Feuillâtre
- School of Archaeological and Forensic Sciences, University of Bradford, Bradford, UK
| | - Julia Beaumont
- School of Archaeological and Forensic Sciences, University of Bradford, Bradford, UK
| | - Fadil Elamin
- Institute of Dentistry, Bart's and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| |
Collapse
|
5
|
Ciochoń A, Apanasewicz A, Danel DP, Galbarczyk A, Klimek M, Ziomkiewicz A, Marcinkowska UM. Antenatal Classes in the Context of Prenatal Anxiety and Depression during the COVID-19 Pandemic. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19095073. [PMID: 35564465 PMCID: PMC9101236 DOI: 10.3390/ijerph19095073] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/08/2022] [Accepted: 04/12/2022] [Indexed: 02/05/2023]
Abstract
Perinatal maternal anxiety and depression negatively affect intrauterine fetal development, birth outcome, breastfeeding initiation, duration, and milk composition. Antenatal classes potentially reduce the anxiety of pregnant women and may thus contribute to healthy infant development. The study investigates the relationship between participation in online or in-person antenatal classes and levels of anxiety and depression in Polish women during the COVID-19 pandemic. The study group included 1774 adult, non-smoking pregnant women. We compared the state anxiety (STAI-State) and depression levels (EPDS) in women who (i) attended antenatal classes in-person, (ii) attended online classes, and (iii) did not attend any of them. The statistical analyses included a GLM model and trend analysis, while controlling for maternal trait anxiety, age, pregnancy complications, trimester of pregnancy, previous pregnancies, and COVID-19 infections. We observed statistically significant differences in the level of anxiety (and depression). Women who did attend antenatal classes in person had the lowest levels of anxiety and depression. Considering the importance of maternal mental well-being on fetal development, birth outcome, and breastfeeding, in-person participation in antenatal classes should be recommended to pregnant women.
Collapse
Affiliation(s)
- Aleksandra Ciochoń
- Department of Environmental Health, Institute of Public Health, Faculty of Health Sciences, Jagiellonian University Medical College, 31-066 Kraków, Poland; (A.C.); (A.G.); (M.K.); (U.M.M.)
| | - Anna Apanasewicz
- Department of Anthropology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (A.A.); (D.P.D.)
| | - Dariusz P. Danel
- Department of Anthropology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wrocław, Poland; (A.A.); (D.P.D.)
| | - Andrzej Galbarczyk
- Department of Environmental Health, Institute of Public Health, Faculty of Health Sciences, Jagiellonian University Medical College, 31-066 Kraków, Poland; (A.C.); (A.G.); (M.K.); (U.M.M.)
| | - Magdalena Klimek
- Department of Environmental Health, Institute of Public Health, Faculty of Health Sciences, Jagiellonian University Medical College, 31-066 Kraków, Poland; (A.C.); (A.G.); (M.K.); (U.M.M.)
| | - Anna Ziomkiewicz
- Laboratory of Anthropology, Institute of Zoology and Biomedical Research, Jagiellonian University, 30-387 Kraków, Poland
- Correspondence: ; Tel.: +48-12-6645070
| | - Urszula M. Marcinkowska
- Department of Environmental Health, Institute of Public Health, Faculty of Health Sciences, Jagiellonian University Medical College, 31-066 Kraków, Poland; (A.C.); (A.G.); (M.K.); (U.M.M.)
| |
Collapse
|
6
|
Almeida LMN, Goulart MDCEL, Góes FGB, Ávila FMVP, Pinto CB, Naslausky SG. A influência do retorno ao trabalho no aleitamento materno de trabalhadoras da enfermagem. ESCOLA ANNA NERY 2022. [DOI: 10.1590/2177-9465-ean-2021-0183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Resumo Objetivo analisar a influência do retorno ao trabalho de mães trabalhadoras da enfermagem no aleitamento materno. Método pesquisa qualitativa, desenvolvida por meio de formulário semiestruturado, via Google Forms, junto a 49 trabalhadoras de enfermagem do estado do Rio de Janeiro. Os dados foram submetidos à análise lexicográfica, com auxílio do software Interface de R pour Analyses Multidimensionnelles de Textes Et de Questionnaires (IRAMUTEQ), pelo método de Nuvem de Palavras e Classificação Hierárquica Descendente. Resultados o aproveitamento do corpus textual foi de 88,24%, gerando quatro classes de segmentos de texto. As principais influências do retorno ao trabalho na amamentação relatadas pelas participantes foram: a falta de apoio dos chefes e colegas de trabalho, a necessidade de local e tempo adequados para ordenha do leite materno, a diminuição na produção de leite por fatores inerentes ao trabalho e sobrecarga e ambientes insalubres de trabalho na enfermagem. Conclusão e implicações para a prática a identificação desses fatores possibilita a compreensão das demandas das nutrizes participantes e aponta para a necessidade de estratégias inovadoras, que garantam o direito das trabalhadoras, assim como adequações de infraestrutura em seus ambientes laborais.
Collapse
|
7
|
Röszer T. Co-Evolution of Breast Milk Lipid Signaling and Thermogenic Adipose Tissue. Biomolecules 2021; 11:biom11111705. [PMID: 34827703 PMCID: PMC8615456 DOI: 10.3390/biom11111705] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/06/2021] [Accepted: 11/10/2021] [Indexed: 12/16/2022] Open
Abstract
Breastfeeding is a unique and defining behavior of mammals and has a fundamental role in nourishing offspring by supplying a lipid-rich product that is utilized to generate heat and metabolic fuel. Heat generation from lipids is a feature of newborn mammals and is mediated by the uncoupling of mitochondrial respiration in specific fat depots. Breastfeeding and thermogenic adipose tissue have a shared evolutionary history: both have evolved in the course of homeothermy evolution; breastfeeding mammals are termed “thermolipials”, meaning “animals with warm fat”. Beyond its heat-producing capacity, thermogenic adipose tissue is also necessary for proper lipid metabolism and determines adiposity in offspring. Recent advances have demonstrated that lipid metabolism in infants is orchestrated by breast milk lipid signals, which establish mother-to-child signaling and control metabolic development in the infant. Breastfeeding rates are declining worldwide, and are paralleled by an alarming increase in childhood obesity, which at least in part may have its roots in the impaired metabolic control by breast milk lipid signals.
Collapse
Affiliation(s)
- Tamás Röszer
- Institute of Neurobiology, Faculty of Science, Ulm University, 89081 Ulm, Germany
| |
Collapse
|
8
|
Liu G, Guo J, Zhang X, Lu Y, Miao J, Xue H. Obesity is a risk factor for central precocious puberty: a case-control study. BMC Pediatr 2021; 21:509. [PMID: 34784914 PMCID: PMC8594221 DOI: 10.1186/s12887-021-02936-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 10/07/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Obesity is an important underlying cause of central precocious puberty (CPP), but previous large studies are flawed by using just age and breast examination to diagnose CPP. We aimed to determine whether overweight and obesity in childhood increases hormonally diagnosed CPP. METHODS Our retrospective, case-control study recruited 846 children diagnosed as having CPP and randomly sampled 1650 healthy control subjects in Xingtai Third Hospital in China between November 2018 and March 2021. Information was obtained from an electronic medical record and questionnaire investigated in the outpatient visit. Observations were made before the a priori hypothesis. Unconditional logistic regression for analysis was used to determine whether overweight and obesity status and duration of overweight/obesity were associated with CPP. RESULTS Overweight and obesity were significantly associated with increased odds of CPP among girls, even after adjusting for birth weight, exclusive breastfeeding for 6 month, household income, maternal overweight, paternal overweight, and maternal menarche age (overweight: the adjusted odds ratio (aOR) (95%CI): 1.92 (1.16, 3.24), p = 0.02; obesity: aOR (95%CI): 1.78 (1.13, 3.48), p = 0.03). Furthermore, the effects of overweight and obesity were significant when ongoing for 1 to 2 years, 2 to 3 years, and greater than 3 years, but not at less than 1 year. For boys, association between obesity and increased odds of CPP was observed (aOR (95%CI): 1.68 (1.09, 3.75), p = 0.03). The effects of overweight and/or obesity were only significant when ongoing for greater than 2 years. CONCLUSIONS Prolonged overweight and obesity in early childhood may be risk factors for CPP, especially in girls. Weight loss might be an important approach for the prevention of precocious puberty in children.
Collapse
Affiliation(s)
- Gaiyan Liu
- Department of pediatrics, Xingtai Third Hospital, Xingtai, P.R. China
| | - Jinxin Guo
- Key Laboratory of Public Health Safety of Hebei Province, College of Public Health, Hebei University, Baoding, 071002, China
| | - Xuejing Zhang
- Department of pediatrics, Xingtai Third Hospital, Xingtai, P.R. China
| | - Yu Lu
- Key Laboratory of Public Health Safety of Hebei Province, College of Public Health, Hebei University, Baoding, 071002, China
| | - Junjie Miao
- School of Public Health, Hebei Medical University, Shijiazhuang, 050017, China.
| | - Hongmei Xue
- Department of Clinical Nutrition, The First Hospital of Hebei Medical University, Shijiazhuang, 050031, Hebei, China.
| |
Collapse
|
9
|
Melo LCDO, Bonelli MCP, Lima RVA, Gomes-Sponholz FA, Monteiro JCDS. Anxiety and its influence on maternal breastfeeding self-efficacy. Rev Lat Am Enfermagem 2021; 29:e3485. [PMID: 34755773 PMCID: PMC8584807 DOI: 10.1590/1518-8345.5104.3485] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 05/25/2021] [Indexed: 11/25/2022] Open
Abstract
Objective: to identify the levels of anxiety and breastfeeding self-efficacy in
puerperal women at the intervals of 60, 120, and 180 days postpartum; and to
verify the influence of anxiety on breastfeeding self-efficacy among these
puerperal women. Method: an analytical, longitudinal and prospective study, conducted with 186
puerperal women, and which used a sociodemographic and obstetric
characterization questionnaire, the State-Trait Anxiety Inventory, and the
Breastfeeding Self-Efficacy Scale - Short Form. The analyses were performed
by means of descriptive statistics, and Fisher’s Exact Test was used. Results: most of the puerperal women presented low levels of trait anxiety (55.4%) and
of state anxiety (66.2% at 60 days, 72.8% at 120 days, and 75.5% at 180
days), and a high level of self-efficacy (77.3% at 60 days, 75.3% at 120
days, and 72.1% at 180 days of puerperium). Low levels of trait anxiety and
state anxiety were associated with high self-efficacy at 60 days (p=0.0142
and p=0.0159, respectively). Conclusion: it is necessary to pay greater attention to the mental health of puerperal
women, considering that those who presented low levels of anxiety had higher
levels of self-efficacy, a situation that can result in longer exclusive
breastfeeding.
Collapse
Affiliation(s)
- Luciana Camargo de Oliveira Melo
- Universidade de São Paulo, Escola de Enfermagem de Ribeirão Preto, PAHO/WHO Collaborating Centre for Nursing Research Development, Ribeirão Preto, SP, Brazil
| | - Marina Cortez Pereira Bonelli
- Universidade de São Paulo, Escola de Enfermagem de Ribeirão Preto, PAHO/WHO Collaborating Centre for Nursing Research Development, Ribeirão Preto, SP, Brazil
| | - Rosa Vanessa Alves Lima
- Universidade de São Paulo, Escola de Enfermagem de Ribeirão Preto, PAHO/WHO Collaborating Centre for Nursing Research Development, Ribeirão Preto, SP, Brazil
| | - Flávia Azevedo Gomes-Sponholz
- Universidade de São Paulo, Escola de Enfermagem de Ribeirão Preto, PAHO/WHO Collaborating Centre for Nursing Research Development, Ribeirão Preto, SP, Brazil
| | - Juliana Cristina Dos Santos Monteiro
- Universidade de São Paulo, Escola de Enfermagem de Ribeirão Preto, PAHO/WHO Collaborating Centre for Nursing Research Development, Ribeirão Preto, SP, Brazil
| |
Collapse
|
10
|
Bogin B. Fear, violence, inequality, and stunting in Guatemala. Am J Hum Biol 2021; 34:e23627. [PMID: 34125987 DOI: 10.1002/ajhb.23627] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/17/2021] [Accepted: 05/28/2021] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Stunting is defined by the public health community as a length- or height-for-age <-2 SD of a growth standard or reference and is claimed to be caused by poor nutrition, repeated infection, and inadequate psychosocial stimulation. MATERIAL AND METHODS Stunting is common at all income levels in middle- and low-income countries. At the higher income levels, stunting is unlikely to be caused by nutrient deficiency or infectious disease. RESULTS In Guatemala, 17% of <5-year-olds in the highest family income quintile are stunted. Guatemala has a history of violence from armed conflict, current-day social and economic inequalities, government corruption, and threat of kidnapping for the wealthiest families. DISCUSSION AND CONCLUSION The high level of persistent violence creates an ecology of fear, an extreme range of inequalities in Social-Economic-Political-Emotional resources, and biosocial stress that inhibits skeletal growth and causes stunting for people of all income levels.
Collapse
Affiliation(s)
- Barry Bogin
- School of Sport, Exercise & Health Sciences, Loughborough University, Loughborough, UK.,UCSD/Salk Center for Academic Research and Training in Anthropogeny (CARTA), University of California San Diego, USA
| |
Collapse
|
11
|
Gaml-Sørensen A, Brix N, Ernst A, Lunddorf LLH, Ramlau-Hansen CH. Father Absence in Pregnancy or During Childhood and Pubertal Development in Girls and Boys: A Population-Based Cohort Study. Child Dev 2021; 92:1494-1508. [PMID: 33400273 DOI: 10.1111/cdev.13488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/11/2020] [Accepted: 09/06/2020] [Indexed: 12/17/2022]
Abstract
This cohort study, including 15,810 children born 2000-2003 in Denmark, aimed to investigate the association between father absence in pregnancy or during childhood and pubertal development in girls and boys. The children were followed from 11 years of age and throughout pubertal development. Mean age differences according to exposure groups were estimated for each pubertal marker separately and for a combined pubertal marker. The results suggested that father absence in pregnancy and during childhood was associated with earlier pubertal development in girls, and father absence from late childhood was associated with earlier pubertal development in boys. The paternal investment theory, the psychosocial acceleration theory and the energetics theory were explored, and did not seem to explain the observed associations.
Collapse
|
12
|
Bogin B, Varea C. COVID-19, crisis, and emotional stress: A biocultural perspective of their impact on growth and development for the next generation. Am J Hum Biol 2020; 32:e23474. [PMID: 32672890 PMCID: PMC7404495 DOI: 10.1002/ajhb.23474] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/28/2020] [Accepted: 06/29/2020] [Indexed: 12/29/2022] Open
Affiliation(s)
- Barry Bogin
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK.,UCSD/Salk Center for Academic Research and Training in Anthropogeny (CARTA), University of California, San Diego, California, USA
| | - Carlos Varea
- Department of Biology, Faculty of Sciences, Madrid Autonomous University, Madrid, Spain
| |
Collapse
|