Are we still in the dark? A systematic review on personal daily light exposure, sleep-wake rhythm, and mood in healthy adults from the general population

Böhmer, Mylène N.; Hamers, Pauline; Bindels, Patrick J E; Oppewal, Alyt; Someren, Eus J.W. Van; Festen, Dederieke

doi:10.1016/j.sleh.2021.06.001

Cited by 20 publications

(16 citation statements)

References 59 publications

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“…artificial light that varies in intensity and/or spectral power) concluded that more light is impacting human performance but no final conclusions could be drawn regarding an effect on sleep [ 94 ]. One extensive review found a positive relation between light exposure and sleep in general but mostly ambiguous results when looking in more detail to the amount and timing of light and the effect on specific sleep parameters [ 95 ]. Bright light at night seems to result in lower sleep quality whereas there is a dose response relationship with the brightness and duration of the light exposure: the more exposure, the lesser quality of sleep.…”

Section: Resultsmentioning

confidence: 99%

Determinants of natural adult sleep: An umbrella review

Philippens

Janssen²,

Kremers³

et al. 2022

PLoS ONE

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Background Sleep has a major impact on health, which makes it a relevant topic for research and health practitioners. Research on sleep determinants, i.e. factors that positively or negatively influence sleep, is fragmented. Objective The purpose of this umbrella review is to provide an overview of the current evidence on determinants of natural adult sleep. Methods A comprehensive literature search was performed on determinants of sleep. Reviews and meta-analyses on natural adult sleep were included. Six electronic databases (PubMed, WoS, Embase, CINAHL, PsycInfo and Cochrane) were used for the search, last accessed September 2021. The quality of the selected articles was assessed using the AMSTAR2 tool. Results were categorized in four main categories: biological, behavioral, environmental and personal/socio-economical determinants. Results In total 93 reviews and meta-analyses resulted in a total of 30 identified determinants. The impact of each determinant differs per individual and per situation. Each determinant was found to affect different sleep parameters and the relationship with sleep is influenced by both generic and specific moderators. Discussion A comprehensive overview on relevant sleep determinants provides a practical and scientifically based starting point to identify relevant intervention approaches to secure or improve individual sleep quality. The difference in aggregation level of the determinants and in measurement methods are the major limitations of this umbrella review. Extending existing generic sleep hygiene rules with an overview of all types of potential determinants will enhance the awareness of the complexity and can be used to improve the effect of sleep interventions in health promotion. Trial registration The umbrella review was registered with PROSPERO (registration ID CRD42020149648) https://www.google.com/search?client=firefox-b-d&q=CRD42020149648.

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Section: Resultsmentioning

confidence: 99%

Determinants of natural adult sleep: An umbrella review

Philippens

Janssen²,

Kremers³

et al. 2022

PLoS ONE

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“…Previous research has shown that light exposure can contribute to internal circadian sleep cycles 40 – 42 . Philips et al, showed that daily light exposure was significantly different in their group of irregular sleepers when compared to their group of regular sleepers; in fact, they noted that their irregular sleeping group was exposed to significantly less day-time light.…”

Section: Discussionmentioning

confidence: 99%

“…This finding gives insight to the idea that sleep duration and a consistent sleep/wake schedule are not associated and that other measures of sleep are more important when considering healthy sleep habits. Previous research has shown that light exposure can contribute to internal circadian sleep cycles [40][41][42] . Philips et al, showed that daily light exposure was significantly different in their group of irregular sleepers when compared to their group of regular sleepers; in fact, they noted that their irregular sleeping group was exposed to significantly less day-time light.…”

Section: Discussionmentioning

confidence: 99%

A lower sleep regularity index (SRI) is associated with relapse in individuals with alcohol use disorder following inpatient treatment

Barb

Brooks

Kazmi

et al. 2022

Sci Rep

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The sleep regularity index (SRI) is used to measure an individual’s sleep/wake consistency over time. The SRI has been associated with certain health risks; to date, research investigating the relationship between the SRI and relapse in individuals with alcohol use disorder (AUD) is lacking. The aim of this work was to evaluate the SRI and relapse in individuals with AUD following inpatient treatment. Individuals with AUD (n = 77, mean age = 49.5 ± 10.86) were assessed for 28-days following discharge from an inpatient treatment program. Logistic regression was applied to examine the impact of SRI on relapse as the outcome variable of interest. Sleep quality was lower in individuals who relapsed compared to those who did not. Moreover, SRI scores were significantly worse in those who relapsed compared to those who did not. Over the entire patient cohort, lower weekly SRI scores were significantly correlated with longer weekly nap duration. Logistic regression model results indicated that the overall SRI was a significant predictor of relapse. The SRI represents a relevant aspect of sleep health and should be considered when assessing an individual’s sleeping patterns. Behavior based interventions related to the importance of individualized consistency in sleep and wake patterns may be particularly important for treatment seeking individuals with AUD not only during inpatient treatment, but also once these individuals have transitioned into their outpatient phase of recovery. These findings support the notion of SRI as a separate facet of sleep health worth investigating in at-risk, disease specific groups.

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“…In addition, integrated dynamic lighting might help prevent sleep problems and mood complaints in people with ID. Evidence suggests that even in unaffected adults, increasing light exposure is associated with a better regulated sleep-wake rhythm (Böhmer et al 2021a). Integrated dynamic lighting might be an undemanding and effective addition to prevent or treat of mood and/or sleep problems.…”

Section: Clinical Relevancementioning

confidence: 99%

Light up: an intervention study of the effect of environmental dynamic lighting on sleep–wake rhythm, mood and behaviour in older adults with intellectual disabilities

Böhmer

Oppewal

Valstar

et al. 2022

J intellect Disabil Res

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scores on the ADAMS depression (À0.64 SD, P < 0.001) and social avoidance (À0.47 SD, P = 0.004) subscales. The prevalence of screening above cut-off for depression decreased from 23 to 9.8% (OR = .16, P = 0.003). For behaviour, a decrease was seen in hyperactivity (À0.43 SD, P < 0.001), lethargy (À0.35 SD, P = 0.008) and irritability (À0.33 SD, P < .001) as measured with the ABC. No adverse effects were reported. Conclusion Installing dynamic lighting in common living areas for older adults with ID improved the mood and behaviour of the residents up to 14 weeks after placement. Integrated dynamic lighting is a promising, undemanding and potentially effective addition to improve mood and behaviour in care organisations for people with ID, but does not seem to do so by improving sleep or sleep-wake rhythms.

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Are we still in the dark? A systematic review on personal daily light exposure, sleep-wake rhythm, and mood in healthy adults from the general population

Cited by 20 publications

References 59 publications

Determinants of natural adult sleep: An umbrella review

Determinants of natural adult sleep: An umbrella review

A lower sleep regularity index (SRI) is associated with relapse in individuals with alcohol use disorder following inpatient treatment

Light up: an intervention study of the effect of environmental dynamic lighting on sleep–wake rhythm, mood and behaviour in older adults with intellectual disabilities

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