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Feng YZ, Chen JT, Hu ZY, Liu GX, Zhou YS, Zhang P, Su AX, Yang S, Zhang YM, Wei RM, Chen GH. Effects of Sleep Reactivity on Sleep Macro-Structure, Orderliness, and Cortisol After Stress: A Preliminary Study in Healthy Young Adults. Nat Sci Sleep 2023; 15:533-546. [PMID: 37434994 PMCID: PMC10332417 DOI: 10.2147/nss.s415464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 06/29/2023] [Indexed: 07/13/2023] Open
Abstract
Purpose To investigate changes and links of stress and high sleep reactivity (H-SR) on the macro-structure and orderliness of sleep and cortisol levels in good sleepers (GS). Patients and Methods Sixty-two GS (18-40 years old) were recruited, with 32 in the stress group and 30 in the control group. Each group was further divided into H-SR and low SR subgroups based on the Ford Insomnia Response to Stress Test. All participants completed two nights of polysomnography in a sleep laboratory. Before conducting polysomnography on the second night, the stress group completed the Trier Social Stress Test and saliva was collected. Results The duration of NREM sleep stages 1, 2 (N1, N2) and rapid eye movement sleep (REM) decreased, and the values of approximate entropy, sample entropy, fuzzy entropy, and multiscale entropy increased under stress and SR effects. Stress increased rapid eye movement density, and H-SR increased cortisol reactivity. Conclusion Stress can damage the sleep and increase cortisol release in GS, especially those with H-SR. N1, N2 and REM sleep are more easily affected, while NREM sleep stage 3 sleep is relatively stable.
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Affiliation(s)
- Yi-Zhou Feng
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Jun-Tao Chen
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
- Department of Neurology, Shangyu People’s Hospital of Shaoxing, Shaoxing, Zhejiang, 312000, People’s Republic of China
| | - Zhen-Yu Hu
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Gao-Xia Liu
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Yu-Shun Zhou
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Ping Zhang
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Ai-Xi Su
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Shuai Yang
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Yue-Ming Zhang
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Ru-Meng Wei
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
| | - Gui-Hai Chen
- Department of Neurology (Sleep Disorders), Chaohu Hospital of Anhui Medical University, Hefei, Anhui, 238000, People’s Republic of China
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Kater MJ, Werner A, Schlarb AA, Lohaus A. Sleep Reactivity and Related Factors in Adolescence: An Increased Risk for Insomnia? A Longitudinal Assessment. Nat Sci Sleep 2023; 15:207-216. [PMID: 37069845 PMCID: PMC10105585 DOI: 10.2147/nss.s401452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 03/25/2023] [Indexed: 04/19/2023] Open
Abstract
Purpose The individual vulnerability for stress-related sleep difficulties (eg, sleep reactivity) is known as a predisposing factor of insomnia in adults, yet relatively little is known about sleep reactivity in adolescence. The study goal is to determine factors related to sleep reactivity and to investigate whether sleep reactivity and related factors predict current and new incidents of insomnia in adolescents. Patients and Methods At baseline, 11-to-17-year-olds (N = 185, Mage = 14.3 years, SD = 1.8, 54% female) answered an age-appropriate version of the Ford Insomnia Response to Stress Test, questionnaires about sleep, stress, psychological symptoms, and resources, filled out a sleep diary and used actigraphy. Insomnia diagnoses according to ISCD-3 criteria were assessed at baseline, after 9 months and after one and a half years. Results Adolescents with high compared to low sleep reactivity had increased pre-sleep arousal, negative sleep-related cognitions, pre-sleep mobile phone use, stress experience, stress vulnerability, internalizing and externalizing symptoms, less social resources, and a later midpoint of bedtime. High sleep reactivity increased the likelihood for currently having insomnia, but not for the development of insomnia at subsequent assessments. Conclusion The findings suggest that high sleep reactivity is related to poor sleep health and mental health but cast doubt on sleep reactivity as a pivotal predisposing factor for the development of insomnia in adolescence.
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Affiliation(s)
- Maren-Jo Kater
- Faculty of Psychology and Sports Science, Department of Developmental Psychology and Developmental Psychopathology, Bielefeld University, Bielefeld, North Rhine Westphalia, Germany
- Correspondence: Maren-Jo Kater, Bielefeld University, Faculty of Psychology and Sports Science, Developmental Psychology and Developmental Psychopathology, P.O. Box 10 01 31, Bielefeld, 33501, Germany, Tel +49 0521 - 106 4461, Email
| | - Anika Werner
- Faculty of Psychology and Sports Science, Department of Developmental Psychology and Developmental Psychopathology, Bielefeld University, Bielefeld, North Rhine Westphalia, Germany
| | - Angelika Anita Schlarb
- Faculty of Psychology and Sports Science Clinical, Department of Psychology and Psychotherapy of Children and Adolescents, Bielefeld University, Bielefeld, North Rhine Westphalia, Germany
| | - Arnold Lohaus
- Faculty of Psychology and Sports Science, Department of Developmental Psychology and Developmental Psychopathology, Bielefeld University, Bielefeld, North Rhine Westphalia, Germany
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Uygur OF, Ahmed O, Bahar A, Hursitoglu O, Aydın EF, Chung S, Ozcan H, Drake CL. Adaptation and Validation of the Turkish Version of the Ford Insomnia Response to Stress Test in University Students. Nat Sci Sleep 2023; 15:139-149. [PMID: 37008595 PMCID: PMC10065018 DOI: 10.2147/nss.s398489] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 03/20/2023] [Indexed: 04/04/2023] Open
Abstract
Objective We adapted the Ford Insomnia Response to Stress Test to Turkish (FIRST-T) and validated it. Methods We randomly divided 774 Turkish university students into two equal groups for exploratory (EFA) and confirmatory factor analysis (CFA). McDonald's omega and Cronbach's alpha values were utilized for reliability analyses. Item response theory (IRT) approach also used for psychometric properties on the full sample. For discriminant validity, study sample were classified into high and low sleep reactivity groups, and their sociodemographic and sleep data were compared. Results EFA results suggested a one-factor structure of the FIRST-T, which was confirmed by CFA results. The FIRST-T had solid internal reliability. Item analysis results showed that all the items could distinguish between low and high scorers. This scale showed the same construct (clinical insomnia vs good sleepers) across the sexes in multi-group CFA and differential item functioning results. In the high FIRST-T score group, sleep quality, severity of insomnia, and anxiety scores were higher. In this group, more participants had clinical insomnia according to the Insomnia Severity Index (ISI) and were poor sleepers according to the Pittsburg Sleep Quality Index (PSQI) (p < 0.01). Conclusion The FIRST-T has robust psychometric properties that assesses sleep reactivity among university students.
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Affiliation(s)
- Omer Faruk Uygur
- Department of Psychiatry, Ataturk University School of Medicine, Erzurum, Turkey
- Correspondence: Omer Faruk Uygur, Department of Psychiatry, Ataturk University School of Medicine, Erzurum, Turkey, Tel +90 442 344 66 66, Email
| | - Oli Ahmed
- Department of Psychology, University of Chittagong, Chattogram, Bangladesh
| | - Aynur Bahar
- Department of Psychiatric Nursing, Gaziantep University Faculty of Health Sciences, Gaziantep, Turkey
| | - Onur Hursitoglu
- Department of Psychiatry, Sular Academy Hospital, Kahramanmaras, Turkey
| | - Esat Fahri Aydın
- Department of Psychiatry, Ataturk University School of Medicine, Erzurum, Turkey
| | - Seockhoon Chung
- Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Halil Ozcan
- Department of Psychiatry, Ataturk University School of Medicine, Erzurum, Turkey
| | - Christopher L Drake
- Henry Ford Hospital Sleep Disorders and Research Center, Detroit, MI, USA
- Department of Psychiatry and Behavioral Neurosciences, Wayne State College of Medicine, Detroit, MI, USA
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Brupbacher G, Zander-Schellenberg T, Straus D, Porschke H, Infanger D, Gerber M, von Känel R, Schmidt-Trucksäss A. The acute effects of aerobic exercise on sleep in patients with unipolar depression: a randomized controlled trial. Sleep 2021; 44:zsab177. [PMID: 34255075 PMCID: PMC8598185 DOI: 10.1093/sleep/zsab177] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/07/2021] [Indexed: 01/23/2023] Open
Abstract
STUDY OBJECTIVES Insomnia increases the risk of negative disease trajectory, relapse, and suicide in patients with depression. We aimed at investigating the effects of a single bout of aerobic exercise, performed after 02:00 pm, on the subsequent night's sleep in patients with depression. METHODS The study was designed as a two-arm parallel-group, randomized, outcome assessor-blinded, controlled, superiority trial. Patients between 18 and 65 years of age with a primary diagnosis of unipolar depression were included. The intervention was a single 30-minute bout of moderate aerobic exercise. The control group sat and read for 30 minutes. The primary outcome was sleep efficiency measured by polysomnography. Secondary outcomes were other polysomnographic variables, subjective sleep quality, daytime sleepiness, mood states, and adverse events. RESULTS Ninety-two patients were randomized to the exercise (N = 46) or control group (N = 46). There were no clinically relevant differences at baseline. Intent-to-treat analysis ANCOVA of follow-up sleep efficiency, adjusted for baseline levels and minimization factors, did not detect a significant effect of the allocation (β = -0.93, p = 0.59). There was no evidence for significant differences between both groups in any other objective or subjective sleep outcomes, daytime sleepiness, or adverse events. The intervention had an immediate positive effect on mood states, including depressiveness (β = -0.40, p = 0.003). CONCLUSIONS This is the first trial to study the effects of a single bout of aerobic exercise on sleep in patients with depression to the best of our knowledge. Aerobic exercise had no effect on sleep efficiency but had a strong beneficial effect on mood and did not increase adverse outcomes. These results add to the growing body of evidence that, contrary to sleep hygiene recommendations, exercise after 02:00 pm is not detrimental for sleep. CLINICAL TRIAL REGISTRATION Clinicaltrials.gov, https://clinicaltrials.gov/ct2/show/NCT03673397. Protocol registered on September 17, 2018.
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Affiliation(s)
- Gavin Brupbacher
- Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
- OBERWAID AG, St. Gallen, Switzerland
| | - Thea Zander-Schellenberg
- Division of Clinical Psychology and Epidemiology, Department of Psychology, University of Basel, Basel, Switzerland
| | | | | | - Denis Infanger
- Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Markus Gerber
- Division of Sport and Psychosocial Health, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Roland von Känel
- Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Arno Schmidt-Trucksäss
- Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
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Brupbacher G, Zander-Schellenberg T, Straus D, Porschke H, Infanger D, Gerber M, von Känel R, Schmidt-Trucksäss A. The Acute Effects of Aerobic Exercise on Nocturnal and Pre-Sleep Arousal in Patients with Unipolar Depression: Preplanned Secondary Analysis of a Randomized Controlled Trial. J Clin Med 2021; 10:jcm10174028. [PMID: 34501476 PMCID: PMC8432550 DOI: 10.3390/jcm10174028] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/03/2021] [Accepted: 09/03/2021] [Indexed: 12/28/2022] Open
Abstract
Unipolar depression is associated with insomnia and autonomic arousal. The aim of this study was to quantify the effect of a single bout of aerobic exercise on nocturnal heart rate variability and pre-sleep arousal in patients with depression. This study was designed as a two-arm, parallel-group, randomized, outcome assessor-blinded, controlled, superiority trial. Patients with a primary diagnosis of unipolar depression aged 18-65 years were included. The intervention consisted of a single 30 min moderate-intensity aerobic exercise bout. The control group sat and read for 30 min. The primary outcome of interest was RMSSD during the sleep period assessed with polysomnography. Secondary outcomes were additional heart rate variability outcomes during the sleep and pre-sleep period as well as subjective pre-sleep arousal. A total of 92 patients were randomized to either the exercise (N = 46) or the control (N = 46) group. Intent-to-treat analysis ANCOVA of follow-up sleep period RMSSD, adjusted for baseline levels and minimization factors, did not detect a significant effect of the allocation (β = 0.12, p = 0.94). There was no evidence for significant differences between both groups in any other heart rate variability measure nor in measures of cognitive or somatic pre-sleep arousal. As this is the first trial of its kind in this population, the findings need to be confirmed in further studies. Patients with depression should be encouraged to exercise regularly in order to profit from the known benefits on sleep and depressive symptoms, which are supported by extensive literature.
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Affiliation(s)
- Gavin Brupbacher
- Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Birsstrasse 320 B, 4052 Basel, Switzerland; (D.I.); (A.S.-T.)
- OBERWAID AG, Rorschacher Strasse 311, 9016 St. Gallen, Switzerland; (D.S.); (H.P.)
- Correspondence:
| | - Thea Zander-Schellenberg
- Department of Psychology, Division of Clinical Psychology and Epidemiology, University of Basel, 4055 Basel, Switzerland;
| | - Doris Straus
- OBERWAID AG, Rorschacher Strasse 311, 9016 St. Gallen, Switzerland; (D.S.); (H.P.)
| | - Hildburg Porschke
- OBERWAID AG, Rorschacher Strasse 311, 9016 St. Gallen, Switzerland; (D.S.); (H.P.)
| | - Denis Infanger
- Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Birsstrasse 320 B, 4052 Basel, Switzerland; (D.I.); (A.S.-T.)
| | - Markus Gerber
- Division of Sport and Psychosocial Health, Department of Sport, Exercise and Health, University of Basel, Birsstrasse 320 B, 4052 Basel, Switzerland;
| | - Roland von Känel
- Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich, Culmannstrasse 8, 8091 Zurich, Switzerland;
| | - Arno Schmidt-Trucksäss
- Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Birsstrasse 320 B, 4052 Basel, Switzerland; (D.I.); (A.S.-T.)
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Kater MJ, Schlarb AA. Smartphone usage in adolescents – motives and link to sleep disturbances, stress and sleep reactivity. SOMNOLOGIE 2020. [DOI: 10.1007/s11818-020-00272-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Brupbacher G, Straus D, Porschke H, Zander-Schellenberg T, Gerber M, von Känel R, Schmidt-Trucksäss A. The acute effects of aerobic exercise on sleep in patients with depression: study protocol for a randomized controlled trial. Trials 2019; 20:352. [PMID: 31196147 PMCID: PMC6567535 DOI: 10.1186/s13063-019-3415-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 05/08/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Unipolar depression is one of the most important mental disorders. Insomnia is a symptom of cardinal importance in depression. It increases the risk to develop depression, negatively affects disease trajectory, is the most common symptom after remission, increases the risk of relapse, and is associated with higher suicide rates. Existing therapies for insomnia in depression have limitations. Further adjuvant therapies are therefore needed. Acute aerobic exercise has been shown to have beneficial effects on sleep in healthy individuals and patients with insomnia. We therefore hypothesize that a single session of aerobic exercise has a positive impact on sleep in patients with unipolar depression. This trial aims to investigate the effects of a single bout of aerobic exercise on the subsequent night's sleep in patients with depression. METHODS/DESIGN This is a two-arm parallel group, randomized, outcome assessor blinded, controlled, superiority trial. Patients between 18 and 65 years of age with a primary diagnosis of unipolar depression (without a psychotic episode) are included. Exclusion criteria are regular use of hypnotic agents, opioids, and certain beta-blockers, as well as the presence of factors precluding exercise, history of epilepsy, restless legs syndrome, moderate obstructive sleep apnea, and a BMI > 40. The intervention is a single bout of aerobic exercise, performed for 30 min on a bicycle ergometer at 80% individual anaerobic threshold. The control group sits and reads for 30 min. The primary outcome is sleep efficiency measured by polysomnography. Secondary outcomes include further polysomnographic variables, subjective pre-sleep arousal, nocturnal cardiovascular autonomic modulation, subjective sleep quality, daytime sleepiness, and adverse events. According to the sample size calculation, a total of 92 patients will be randomized using minimization. DISCUSSION This trial will add new information to the body of knowledge concerning the treatment of insomnia in patients with depression. Thereby, the results will inform decision makers on the utility of acute aerobic exercise. TRIAL REGISTRATION Clinicaltrials.gov, NCT03673397 . Protocol version 1 registered on 17 September 2018.
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Affiliation(s)
- Gavin Brupbacher
- Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland.
- OBERWAID AG, Rorschacher Strasse 311, 9016, St. Gallen, Switzerland.
| | - Doris Straus
- OBERWAID AG, Rorschacher Strasse 311, 9016, St. Gallen, Switzerland
| | | | - Thea Zander-Schellenberg
- Department of Psychology, Division of Clinical Psychology and Epidemiology, University of Basel, Basel, Switzerland
| | - Markus Gerber
- Division of Sport and Psychosocial Health, Department of Sport, Exercise and Health, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland
| | - Roland von Känel
- Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich, Culmannstrasse 8, 8091, Zurich, Switzerland
| | - Arno Schmidt-Trucksäss
- Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland
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Kalmbach DA, Anderson JR, Drake CL. The impact of stress on sleep: Pathogenic sleep reactivity as a vulnerability to insomnia and circadian disorders. J Sleep Res 2018; 27:e12710. [PMID: 29797753 PMCID: PMC7045300 DOI: 10.1111/jsr.12710] [Citation(s) in RCA: 247] [Impact Index Per Article: 41.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 04/12/2018] [Accepted: 04/13/2018] [Indexed: 12/19/2022]
Abstract
Sleep reactivity is the trait-like degree to which stress exposure disrupts sleep, resulting in difficulty falling and staying asleep. Individuals with highly reactive sleep systems experience drastic deterioration of sleep when stressed, whereas those with low sleep reactivity proceed largely unperturbed during stress. Research shows that genetics, familial history of insomnia, female gender and environmental stress influence how the sleep system responds to stress. Further work has identified neurobiological underpinnings for sleep reactivity involving disrupted cortical networks and dysregulation in the autonomic nervous system and hypothalamic-pituitary-adrenal axis. Sleep reactivity is most pathologically and clinically pertinent when in excess, such that high sleep reactivity predicts risk for future insomnia disorder, with early evidence suggesting high sleep reactivity corresponds to severe insomnia phenotypes (sleep onset insomnia and short sleep insomnia). High sleep reactivity is also linked to risk of shift-work disorder, depression and anxiety. Importantly, stress-related worry and rumination may exploit sensitive sleep systems, thereby augmenting the pathogenicity of sleep reactivity. With the development of cost-effective assessment of sleep reactivity, we can now identify individuals at risk of future insomnia, shift-work disorder and mental illness, thus identifying a target population for preventive intervention. Given that insomniacs with high sleep reactivity tend to present with severe insomnia phenotypes, patient sleep reactivity may inform triaging to different levels of treatment. Future research on sleep reactivity is needed to clarify its neurobiology, characterize its long-term prospective associations with insomnia and shift-work disorder phenotypes, and establish its prognostic value for mental illness and other non-sleep disorders.
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Affiliation(s)
- David A. Kalmbach
- Sleep Disorders and Research Center, Henry Ford Hospital, Detroit, Michigan
| | - Jason R. Anderson
- Department of Psychological Sciences, Kent State University, Kent, Ohio
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Kalmbach DA, Cuamatzi-Castelan AS, Tonnu CV, Tran KM, Anderson JR, Roth T, Drake CL. Hyperarousal and sleep reactivity in insomnia: current insights. Nat Sci Sleep 2018; 10:193-201. [PMID: 30046255 PMCID: PMC6054324 DOI: 10.2147/nss.s138823] [Citation(s) in RCA: 173] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Hyperarousal is a key component in all modern etiological models of insomnia disorder. Overall patterns in the literature suggest that over-active neurobiological and psychological systems contribute to difficulty sleeping. Even so, mixed results regarding the specific mechanisms linking hyperarousal to sleep disturbance limit current etiological conceptualizations. Similar basal arousal profiles between individuals with high vs low risk for insomnia in the absence of stress exposure suggest that dysregulated stress "response" rather than general hyperarousal may be a more pertinent marker of risk. In this report, we discuss evidence for hyperarousal in insomnia and explore the role of sleep reactivity. A trait characteristic, sleep reactivity is the degree to which stress disrupts sleep, manifesting as difficulty falling and staying asleep. Premorbid sleep reactivity has been shown to identify individuals at risk for future insomnia disorder, such as highly reactive sleepers (whose sleep systems are sensitive to stress) who are at elevated disease risk. Research points to genetics, family history of insomnia, gender, and environmental stress as factors that influence sleep reactivity. Importantly, stress-related cognitive-emotional reactivity (e.g., rumination, worry) may exploit the vulnerability of a highly reactive sleep system. We propose that sleep reactivity and cognitive-emotional reactivity may share a bidirectional relationship, conferring an insalubrious environment for sleep in response to stress. Future research on sleep reactivity is needed to identify its neurobiology, characterize its relationship with cognitive-emotional reactivity, and explore the potential clinical utility of sleep reactivity in treatment planning.
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Affiliation(s)
- David A Kalmbach
- Thomas Roth Sleep Disorders and Research Center, Henry Ford Health System, Detroit, MI, USA,
| | | | - Christine V Tonnu
- Thomas Roth Sleep Disorders and Research Center, Henry Ford Health System, Detroit, MI, USA,
| | - Kieulinh Michelle Tran
- Thomas Roth Sleep Disorders and Research Center, Henry Ford Health System, Detroit, MI, USA,
| | - Jason R Anderson
- Department of Psychological Sciences, Kent State University, Kent, OH, USA
| | - Thomas Roth
- Thomas Roth Sleep Disorders and Research Center, Henry Ford Health System, Detroit, MI, USA,
| | - Christopher L Drake
- Thomas Roth Sleep Disorders and Research Center, Henry Ford Health System, Detroit, MI, USA,
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