Sleep - Wikipedia
Sleep is a state of reduced mental and physical activity in which consciousness is altered and certain sensory activity is inhibited. During sleep, there is a marked decrease in muscle activity and …
What happens during sleep — and how to improve it
Jun 1, 2025 · Sleep impacts nearly every part of your health, from brain function to immune strength. Learn what happens in each phase of sleep, how to manage common disruptions, and simple ways …
Benefits of Sleep: Improved Energy, Mood, and Brain Health
Jul 22, 2025 · Getting enough quality sleep is essential for both mental and physical health. Key benefits of sleep include: Like eating well, staying hydrated, and exercising regularly, getting enough quality …
Sleep tips: 6 steps to better sleep - Mayo Clinic
Jan 31, 2025 · Consider simple tips for better sleep, from setting a sleep schedule to including physical activity in your daily routine. Many factors can interfere with a good night's sleep — from work stress …
Sleep: What It Is, Why It’s Important, Stages, REM & NREM
Jun 19, 2023 · You spend about one-third of your life sleeping, but it’s still something many struggle with. Researchers and experts also struggle with it because of the mysteries surrounding how and why we …
About Sleep | Sleep | CDC
May 15, 2024 · About Sleep Key points Good sleep is essential for our health and emotional well-being. Getting enough sleep and good sleep quality are essential for healthy sleep. The amount of sleep …
The Science of Sleep: Understanding What Happens When You Sleep
Sleep accounts for one-quarter to one-third of the human lifespan. But what exactly happens when you sleep? Before the 1950s, most people believed sleep was a passive activity during which the body …
Sleep | Psychology Today
Sleep is the balm that soothes and restores after a long day. Sleep is largely driven by the body’s internal clock, which takes cues from external elements such as sunlight and temperature. The...
Brain Basics: Understanding Sleep - National Institute of Neurological ...
Feb 25, 2025 · Sleep affects almost every type of tissue and system in the body—from the brain, heart, and lungs to metabolism, immune function, mood, and disease resistance.
Best and Worst Sleeping Positions for Health, According to Experts
Dec 29, 2025 · Certain sleeping positions, such as side sleeping, may be beneficial for your health. Experts suggest that sleeping on your stomach or back may have various health implications.