Sleep strips away consciousness, but it does not shut the brain down. PET imaging of 37 volunteers has shown that regional ...

In his wildest dreams, HHMI Investigator Massimo Scanziani never imagined he'd study sleep. But, when a postdoc in the lab ...

For centuries, people have wondered what separates being awake from being asleep, dreaming, or unconscious. Scientists have ...

People who sleep longer and spend more time in the rapid-eye-movement stage report richer, more emotionally charged dreams, ...

Hasegawa et al. first used a fluorescence-based sensor to measure dopamine levels in the amygdala of mice as they naturally cycled between wakefulness and non-REM and REM sleep. Dopamine release in ...

REM stands for rapid eye movement — a stage in the sleep cycle when your brain is almost as active as when you’re awake. Getting enough REM sleep is crucial, as it helps you store information and ...

While it is certainly true that rapid eye movement (REM) sleep functions, in part, to promote a healthy waking mind, there are compelling reasons to believe that the opposite is the case as well: the ...

Nearly one-third of our life is spent asleep. It is a highly active and organized process that is essential for both physical ...