Turning off all lights and drawing the curtains before hitting the bed may help protect your health, according to a recent study out of Northwestern University
Researchers found exposure even to moderate ambient light while sleeping, compared to sleeping in a dimly lit room, is harmful to your
The authors of the study said up to 40 percent of individuals sleep with a light on in the bedroom or keep the-The researchers tested the effect of sleeping with 100 lux compared to 3 lux in participants over a single night. Zee’s research team discovered that moderate light exposure while sleeping caused the body to go into a higher alert state.
Co-first author Dr. Daniela Grimaldi, who is a research assistant professor of neurology at Northwestern, said in the release,"Even though you are asleep, your autonomic nervous system is activated. That’s bad. Usually, your heart rate together with other cardiovascular parameters are lower at night and higher during the day.
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