Light at Night Spoils Sleep and Health

You won’t realize it’s happening, but even moderate light robs you of deep sleep and raises your heart rate

Robert Roy Britt
Elemental
Published in
5 min readMar 14, 2022

--

Photo: Unsplash / Shane

Once upon a time, humans slept in total darkness, save perhaps some bright moonlight or a soothing fire at the cave entrance. After millions of years without light switches, we’re evolutionarily programmed to rely on…

--

--

Robert Roy Britt
Elemental

Editor of Aha! and Wise & Well on Medium + the Writer's Guide at writersguide.substack.com. Author of Make Sleep Your Superpower: amazon.com/dp/B0BJBYFQCB