How smart is it to go to bed with the phone? The impact of short-wavelength light and affective states on sleep and circadian rhythms

SR Schmid, C Höhn, K Bothe, CP Plamberger… - Clocks & Sleep, 2021 - mdpi.com
Previously, we presented our preliminary results (N= 14) investigating the effects of short-
wavelength light from a smartphone during the evening on sleep and circadian rhythms …

Preliminary results: the impact of smartphone use and short-wavelength light during the evening on circadian rhythm, sleep and alertness

C Höhn, SR Schmid, CP Plamberger, K Bothe… - Clocks & sleep, 2021 - mdpi.com
Smartphone usage strongly increased in the last decade, especially before bedtime. There
is growing evidence that short-wavelength light affects hormonal secretion …

Associations between light exposure and sleep timing and sleepiness while awake in a sample of UK adults in everyday life

A Didikoglu, N Mohammadian… - Proceedings of the …, 2023 - National Acad Sciences
Experimental and interventional studies show that light can regulate sleep timing and
sleepiness while awake by setting the phase of circadian rhythms and supporting alertness …

Light modulation of human clocks, wake, and sleep

AS Prayag, M Münch, D Aeschbach, SL Chellappa… - Clocks & sleep, 2019 - mdpi.com
Light, through its non-imaging forming effects, plays a dominant role on a myriad of
physiological functions, including the human sleep–wake cycle. The non-image forming …

Light exposure behaviors predict mood, memory and sleep quality

MA Siraji, M Spitschan, V Kalavally, S Haque - Scientific Reports, 2023 - nature.com
Ample research has shown that light influences our emotions, cognition, and sleep quality.
However, little work has examined whether different light exposure-related behaviors, such …

Early evening light mitigates sleep compromising physiological and alerting responses to subsequent late evening light

M Te Kulve, LJM Schlangen… - Scientific Reports, 2019 - nature.com
The widespread use of electric light and electronic devices has resulted in an excessive
exposure to light during the late-evening and at night. This late light exposure acutely …

[HTML][HTML] Two hours of evening reading on a self-luminous tablet vs. reading a physical book does not alter sleep after daytime bright light exposure

FH Rångtell, E Ekstrand, L Rapp, A Lagermalm… - Sleep medicine, 2016 - Elsevier
Background The use of electronic devices emitting blue light during evening hours has been
associated with sleep disturbances in humans, possibly due to the blue light-mediated …

Unrestricted evening use of light‐emitting tablet computers delays self‐selected bedtime and disrupts circadian timing and alertness

ED Chinoy, JF Duffy, CA Czeisler - Physiological reports, 2018 - Wiley Online Library
Ab] stract Consumer electronic devices play an important role in modern society.
Technological advancements continually improve their utility and portability, making …

Sex differences in light sensitivity impact on brightness perception, vigilant attention and sleep in humans

SL Chellappa, R Steiner, P Oelhafen, C Cajochen - Scientific reports, 2017 - nature.com
Artificial light endows a “round-the-clock”, 24-h/7-d society. Chronic exposure to light at night
contributes to health hazards for humans, including disorders of sleep. Yet the influence of …

Outdoor daylight exposure and longer sleep promote wellbeing under COVID‐19 mandated restrictions

M Korman, V Tkachev, C Reis, Y Komada… - Journal of sleep …, 2022 - Wiley Online Library
Light is an important regulator of daily human physiology in providing time‐of‐day
information for the circadian clock to stay synchronised with the 24‐hr day. The coronavirus …