Tag

Circadian Rhythm
28
Jun

Why your sleep and wake cycles affect your mood

June 28, 2021
Source: HARVARD HEALTH BLOG May 13, 2020 By: Lawrence Epstein, MD, ContributorBy: Syed Moin Hassan, MD, Contributor It’s no accident that most people tend to sleep at night and are awake during the day. Our sleep-wake cycle is determined by our circadian rhythm, the body’s internal clock. Like old-time clocks, this internal clock needs to be reset every day,...
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22
Jun

Effects of sleep deprivation on endothelial function in adult humans: a systematic review

June 22, 2021
Holmer, B.J., Lapierre, S.S., Jake-Schoffman, D.E. et al. Effects of sleep deprivation on endothelial function in adult humans: a systematic review. GeroScience 43, 137–158 (2021). https://doi.org/10.1007/s11357-020-00312-y Abstract Sleep deprivation is highly prevalent and is associated with increased cardiovascular disease (CVD) morbidity and mortality. Age-related alterations in sleep and chronobiology may exaggerate CVD susceptibility in older individuals. The mechanisms responsible for...
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26
May

Seeing the light: beneficial impacts on neuroendocrine physiology?

May 26, 2021,
British Society for Neuroendocrinology Briefing 58 Dr Manuel Spitschan In addition to seeing the colourful and detailed world around us, light profoundly impacts our brains and bodies – exposure to light in the evening and at night suppresses the production of melatonin and disrupts our circadian rhythm, which can have negative consequences on physical and...
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17
May

Anonymous Online Survey on Sleep & Light

May 17, 2021
Post update – Now open to everyone >11 years old. Participate in research Are you between 11 and 99 years old? The Centre for Chronobiology in Basel (Switzerland) is looking for young people aged 11 years or older to complete a online survey on sleep and light exposure. It will take about 15-20 minutes, and there are...
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16
May

Enlighten your clock: How your body tells time

May 16, 2021
New open-access and science-based comic book “Enlighten your clock: How your body tells time” suitable (13+ years) Citation: Weinzaepflen, C. & Spitschan, M. (Ed.) (2021). Enlighten your clock: How your body tells time. (C. Weinzaepflen, Illus.). DOI: 10.17605/OSF.IO/ZQXVH Free download available from https://enlightenyourclock.org/
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16
May

Artificial Outdoor Nighttime Lights Associate with Altered Sleep Behavior in the American General Population

May 16, 2021
Maurice M. Ohayon, MD, DSc, PhD, Cristina Milesi, PhD, Artificial Outdoor Nighttime Lights Associate with Altered Sleep Behavior in the American General Population, Sleep, Volume 39, Issue 6, June 2016, Pages 1311–1320, https://doi.org/10.5665/sleep.5860 Abstract Study Objectives: Our study aims to explore the associations between outdoor nighttime lights (ONL) and sleep patterns in the human population. Methods: Cross-sectional...
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13
May

Estrogens and the circadian system

May 13, 2021
Alvord VM, Kantra EJ, Pendergast JS. Estrogens and the circadian system. Semin Cell Dev Biol. 2021 May 8:S1084-9521(21)00083-5. doi: 10.1016/j.semcdb.2021.04.010. Epub ahead of print. PMID: 33975754. Abstract Circadian rhythms are ~24 h cycles of behavior and physiology that are generated by a network of molecular clocks located in nearly every tissue in the body. In...
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01
May

Global rise of potential health hazards caused by blue light-induced circadian disruption in modern aging societies.

May 1, 2021
Hatori M, Gronfier C, Van Gelder RN, et al. Global rise of potential health hazards caused by blue light-induced circadian disruption in modern aging societies. NPJ Aging and Mechanisms of Disease. 2017 ;3:9. DOI: 10.1038/s41514-017-0010-2. Abstract Mammals receive light information through the eyes, which perform two major functions: image forming vision to see objects and...
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26
Apr

Light at Night as an Environmental Endocrine Disruptor

April 26, 2021
Russart KLG, Nelson RJ. Light at night as an environmental endocrine disruptor. Physiol Behav. 2018 Jun 1;190:82-89. doi: 10.1016/j.physbeh.2017.08.029. Epub 2017 Sep 7. PMID: 28870443; PMCID: PMC5839924. https://www.sciencedirect.com/science/article/abs/pii/S0031938417302743?via%3Dihub Abstract Environmental endocrine disruptors (EEDs) are often consequences of human activity; however, the effects of EEDs are not limited to humans. A primary focus over the past...
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26
Apr

Children’s Health in the Digital Age

April 26, 2021
Dresp-Langley B. Children’s Health in the Digital Age. International Journal of Environmental Research and Public Health. 2020; 17(9):3240. https://doi.org/10.3390/ijerph17093240 Abstract Environmental studies, metabolic research, and state of the art research in neurobiology point towards the reduced amount of natural day and sunlight exposure of the developing child, as a consequence of increasingly long hours spent indoors...
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