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 ...

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 ...

According to sleep doctors, the trick to improving sleep is not to bundle up and get cozy, but to cool the body down before ...

While you’re asleep, your brain is busy undergoing a restorative reset. The glymphatic system clears out toxins and metabolic waste, while short-term memories are filed in the neocortex. At the same ...

New research suggests splitting sleep into night and daytime naps can boost memory and reduce sleep pressure, offering ...