While we’re asleep at night, our brain is busy doing maintenance. The glymphatic system–the brain’s waste disposal ...

A passenger was shocked when their experiment in an airplane lavatory worked, revealing that she learned the trick on TikTok.

Their observations revealed that norepinephrine levels in the brain fluctuate about every 50 seconds during non-REM sleep.

Extreme heat is uncomfortable for everyone, but particularly for those going through menopause. Here’s how to cope.