Dec 22, 2009 · When you sleep, your body undergoes a series of changes that enable the rest that is vital to your overall health. Sleep allows the brain and body to slow down and engage in processes of recovery, promoting better physical and …

What exactly does sleep do for your body and mind? Here’s what researchers know about the science of sleep—including the stages of sleep, your biological clock, health connections and more.

Oct 19, 2024 · What’s happening varies depending on which part of sleep you’re in -- rapid eye movement (REM sleep) or non-REM sleep -- and even which stage of non-REM sleep you’re in.

Sep 5, 2024 · Sleep is a complex and dynamic process that affects how you function in ways scientists are now beginning to understand. This webpage describes how your need for sleep is regulated and what happens in the brain during sleep.

Aug 9, 2024 · Sleep gives your body time to repair itself and carry out important functions, like clearing out waste and releasing hormones. Without these processes, our bodies can’t function correctly.

Oct 23, 2020 · This knowledge reveals how sleep is connected to numerous elements of physical, emotional, and mental health and provides insights about how people can get better sleep.

When you’re asleep, your body “powers down” and most body systems — including your brain — become less active. Some of the key things that happen while you’re asleep include: Energy conservation and storage. During the day, cells throughout your body use stockpiled resources to keep doing their jobs. While you’re asleep, your body uses less energy.

Aug 6, 2020 · We round up the neuroscientific evidence that helps explain the intricate workings of the human brain when it is asleep. Scientists generally agree that there are four stages of sleep that we...

Jan 2, 2025 · During sleep, your body cycles through 4 stages and 2 phases, all of which contribute to your overall health. Quality sleep is important for your memory, immune system, muscles, and more.

Sleep is a complex process that occurs in stages, and we cycle in and out of these stages during the night. The two main components of normal sleep are REM (rapid eye movement) sleep, when the most vivid dreaming occurs, and non-REM sleep (NREM).