What happens when we sleep?
By Emma Monaghan / January 20, 2021In 1953, some scientists noticed that sometimes, during sleep, people’s eyes make these strange, quick and jerky, side-to-side movements behind closed eyelids. Weird. They discovered in 20 out of 27 people that this jerky eyeball dance, termed “rapid eye movement,” or REM, occurred at the same time as when the people had incredibly visual dreams. […]