Add Yahoo as a preferred source to see more of our stories on Google. A woman stretching after sleep. When it comes to rest, people tend to think about it in terms of being awake or asleep. However, ...

The key to keeping your wits about you as you age may lie in shut-eye during midlife. A study found that people over 60 who didn’t get enough slow-wave sleep — the third stage in the human sleep cycle ...

Dr Kumar explains hypnic jerks, a common sleep occurrence that feels like falling. They are usually harmless but warrant ...

The locus coeruleus is a region of the brain that is instrumental in coordinating our mental processing and is the primary source of noradrenaline in the brain, which acts to regulate arousal states ...