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Beneficial effects of daytime high-intensity light exposure on daily rhythms, metabolic state and affect

Health and Fitness

Beneficial effects of daytime high-intensity light exposure on daily rhythms, metabolic state and affect

C. Bilu, H. Einat, et al.

This groundbreaking research conducted by Carmel Bilu, Haim Einat, Paul Zimmet, Vicktoria Vishnevskia-Dai, and Noga Kronfeld-Schor reveals that morning exposure to high-intensity light can significantly enhance metabolic health in sand rats. Improve daily rhythms, glucose tolerance, and even reduce anxiety—can the power of light transform our health?

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Playback language: English
Abstract
This study investigates the effects of morning high-intensity light exposure (3000 lux) on the health of sand rats, a diurnal animal model. The results show that morning light treatment leads to improved daily rhythms in activity, blood glucose levels, and *per2* gene expression. Treated animals exhibited better metabolic health, including normoglycemia, improved glucose tolerance, lower body and heart weight, and reduced anxiety and depression-like behaviors. The findings suggest that high-intensity light exposure is crucial for proper circadian system function and overall well-being, highlighting the potential impact of low daylight exposure and artificial light at night on human health.
Publisher
Scientific Reports
Published On
Nov 13, 2020
Authors
Carmel Bilu, Haim Einat, Paul Zimmet, Vicktoria Vishnevskia-Dai, Noga Kronfeld-Schor
Tags
high-intensity light
sand rats
circadian rhythms
metabolic health
glucose tolerance
anxiety
per2 gene expression
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