But how do sleep cycles work? To find out, I took part in a polysomnography. This is a gold standard sleep study that helps ...

However, some research shows that major stressors may increase REM sleep but reduce deep sleep. REM rebound, which is when we ...

These stages are the most dangerous because after five days of sleep deprivation, and if you've been hallucinating, you may also experience delusions and disordered thinking. In addition ...

Done wisely, naps can be a valuable way to boost your focus and energy. A sleep researcher explains how to get it right.

Science does not yet know enough to understand fully all the stages of sleep, Krieger added, but research is underway. Stay tuned. “In the meantime, I suggest people stop worrying about the ...

People often confuse narcolepsy and chronic fatigue syndrome, but these are the differences you should pay attention to.