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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 and …

  2. 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 …

  3. 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 …

  4. 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 …

  5. 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 …

  6. 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 …

  7. 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 …

  8. 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...

  9. 15 Proven Tips to Sleep Better at Night - Healthline

    Nov 21, 2025 · Making changes to your diet and lifestyle may help improve your sleep quality. Certain supplements and natural remedies could also be beneficial. A good night’s sleep is just as important …

  10. Healthy Sleep - MedlinePlus

    Dec 9, 2025 · Sleep is a natural process that helps your body restore energy, supports learning and memory, and keeps you healthy. During sleep, your brain cycles through different stages of non …