Light sleep is the beginning of your sleep cycle and your body's way of winding down. Breathing, heart rate and muscle changes prepare your body for the deeper sleep to come. Light sleep is broken ...

A new study highlights how important uninterrupted sleep is to recovery after a traumatic brain injury, finding that ...

During REM sleep, your heart rate increases, your blood pressure elevates, and your eyes move. REM sleep may also be the time when your brain processes emotions and solidifies memories. Your body ...

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 ...

Eugene Aserinsky never wanted to study sleep. He tried being a social worker, a dental student, and even did a stint in the army as an explosives handler. He enrolled at the University of Chicago to ...

Depending on their age, a person needs 7–17 hours sleep in every 24 hours. But, just sleeping is not enough. Deep sleep is essential for health and wellbeing. Most adults need around 1.5–2 hours of ...

Previously unreported links between possible REM sleep behavior disorder (pRBD) and alcohol use, and psychological distress emerged in a nationwide Canadian study, researchers reported. Heavy drinking ...

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 ...