An actigraphy device is similar to a wristwatch and uses accelerometers to measure the person's movement. Coupled with sleep ...

Although we know sleep is essential to our physical and mental well-being, it remains an incredibly enigmatic behavior, scientifically speaking.

That theory posits that, if memories were shrubs, the non-REM phase of sleep helps them grow taller and stronger. The REM ...

Although we know sleep is essential to our physical and mental well-being, it remains an incredibly enigmatic behavior, ...