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  1. 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 …

  2. 8 Health Benefits of Sleep

    Feb 29, 2024 · Like eating nutritious food, drinking water, and exercising regularly, getting quality sleep is an important component of overall health. Although the exact reasons humans need …

  3. Sleep: How Much You Need and Its 4 Stages

    Dec 3, 2021 · Sleep is a catch-all that benefits your physical, mental and emotional health. When you’re sleeping, your body has the chance to rest and recover — and these restorative …

  4. 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 …

  5. What happens during sleep — and how to improve it - Harvard ...

    Jun 1, 2025 · Sleep affects 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, …

  6. The Science of Sleep: Understanding What Happens When You ...

    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 …

  7. Sleep: Facts about how and why we sleep | Live Science

    May 29, 2025 · Learn facts about sleep, during which the body rests, recuperates and performs essential repairs.

  8. Healthy Sleep: How Much You Need, Tips, Benefits, Treatment ...

    Nov 4, 2024 · Most adults should aim to get 7 or more hours of uninterrupted sleep each night. Keep reading to learn about habits for getting good sleep and what to do if you find it hard to …

  9. 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...

  10. 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 — …