Humans spend about a third of their lives asleep. Sleep seems essential for all animals that have a nervous system, but nobody really knows why.
Coffee has so much more caffeine than tea that the body can absorb a lot of it quickly. Tea, on the other hand, makes the body work hard to absorb its caffeine.
Not getting enough sleep can eventually clog arteries, which can cause a heart attack or stroke.
When we’re trying to fall asleep, white noise can create a masking effect that blocks sudden changes in sound.
Contrary to popular western practice, there is no “normal” way to sleep. There are just culturally accepted practices. Sleep is comprised of four stages of NREM (Non-Rapid Eye Movement) sleep and one of REM sleep, which is about 25 percent of a night’s sleep. These stages regulate and restore the body. People do not experience […]
Ever feel like there weren’t enough hours in the day? Before the Industrial Revolution, people took their downtime in the middle of the night.
There's proof that until the 17th century, people's natural sleep patterns were to sleep when it first got dark, wake up for a few hours, and then have another extended sleep.
The blue light from your phone can trick your retinal cells into thinking it's daytime.
Getting six hour of sleep or less can have a significant impact on your health.
Scientists are still trying to figure out why humans and other organisms need to sleep.