Sleep disorders may lead to structural brain changes, cognitive decline, and neurological disease. Here’s what science says about the risk.

It’s bedtime, but your legs feel like they need to move as soon as you lie down. Sound familiar? You may have restless legs ...

Many people who experience sleep paralysis see frightening hallucinations some call "sleep paralysis demons." (Leah Abucayan, ...

Well, just like with acting out our dreams, it's actually impossible to sneeze during sleep — at least in certain stages of ...