Your sleep cycle includes light, slow-wave, deep, and REM sleep, which repeat throughout the night. To get restful sleep, you need to spend the right amount of time in each stage of the sleep cycle.

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 and it’s seen as the deepest stage of the sleep cycle. As the name states, REM sleep is ...

Learn facts about sleep, during which the body rests, recuperates and performs essential repairs. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Any sleep tracker will show you that slumber is far from a passive affair. And no stage of sleep demonstrates that better than rapid eye movement, or REM, commonly called dream sleep. “It’s also ...

Sleep is kind of a big deal. It’s the best way for our bodies to recover after a hard day, and it also greatly influences our cognitive functions and immune responses. Yet while many of us focus on ...

While you might be getting the recommended eight hours of shuteye each night, you may still be missing out on the quality sleep your brain and body need. That can be frustrating, especially if you’re ...

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 ...

A little-known and poorly understood sleep disorder that occurs during the rapid eye movement, or REM, stage of sleep has been garnering attention for its role in foreshadowing neurodegenerative brain ...