Your bedroom is probably not as dark as it should be. Even through closed eyelids, light streaming from the television or hallway can make its way into our retinas and harm our health and mental acuity the next day.
Democracy Dies in Darkness
This $10 purchase can improve your sleep and boost your brain health
Research has shown that even relatively dim light when we snooze — about the equivalent of a hallway light — can have surprisingly profound physiological effects
By Richard Sima
January 18, 2024 at 7:00 a.m. EST
