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 …
Benefits of Sleep: Improved Energy, Mood, and Brain Health
Jul 22, 2025 · Sleep is a complex biological process made up of several stages that cycle throughout the night. These stages include rapid eye movement (REM) sleep and non-REM sleep, each of which …
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 …
Why Do We Sleep? What Happens During Sleep? - Healthline
Aug 9, 2024 · So, it’s no surprise that we spend about one-third of our lives sleeping. Let’s take a closer look at why we sleep, along with what happens when we don’t get enough.
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 …
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 …
Sleep: What It Is, Why It’s Important, Stages, REM & NREM
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 sleep and …
The Science of Sleep: Understanding What Happens When You Sleep
Throughout your time asleep, your brain will cycle repeatedly through two different types of sleep: REM (rapid-eye movement) sleep and non-REM sleep. The first part of the cycle is non-REM sleep, which …
How to Sleep Better: Tips to Improve Sleep Quality
Jan 16, 2025 · These simple sleep hygiene tips can help you fall asleep quickly, stay asleep longer, and be more energetic and productive during the day. Sleeping well directly affects your mental and …
Ask the Expert: A Neurologist Explains the Importance of Sleep for ...
Nov 11, 2025 · A strong relationship exists between sleep and brain health. Long-term sleep disruptions can increase the risk of neurodegenerative disorders.