Medical News Today
25 Mar 2022
Researchers recently investigated the health effects of light exposure during sleep.
They found that light exposure during even one night of sleep increases heart rate while sleeping and impairs glucose metabolism the following morning.
It is hypothesised that light activates certain brain regions that regulate the autonomic nervous system and is thus responsible for the above effects.
They say that sleeping without exposure to light is likely beneficial for cardiometabolic health.
Exposure to artificial light at night is widespread globally and is linked to negative effects on health and well-being and can increase risk for heart disease, diabetes, and metabolic syndrome.
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