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Bookmark or Share- Sleep/Wake Cycles - Johns Hopkins MedicineTwo body processes control sleeping and waking periods. These are called sleep/wake homeostasis and the circadian biological clock. With sleep/wake homeostasis, the longer you are awake, the greater your body senses the need to sleep.
- Sleep cycle stages: Chart, durations, and how to improve sleepThere are four sleep cycle stages, beginning with light sleep and ending with REM sleep. Each stage has a different effect on the body, and each is important for sleep quality.
- Why Do We Need Sleep? - Sleep FoundationWake up short of breath? See Your Risk. Sleep serves a variety of important physical and psychological functions, including: Learning and memory consolidation: Sleep helps with focus and concentration—and it allows the brain to register and organize memories —all of which are vital to learning.
- Brain Basics: Understanding Sleep | National Institute of Neurological ...Without sleep, you can’t form or maintain the pathways in your brain that let you learn and create new memories. Lack of sleep makes it harder to concentrate and respond quickly. Sleep is important to a number of brain functions, including how nerve cells (neurons) communicate with each other.
- Stages of Sleep: What Happens in a Sleep CycleEach sleep stage plays a part in allowing the mind and body to wake up refreshed. Understanding the sleep cycle also helps explain how certain sleep disorders, including insomnia and obstructive sleep apnea, can impact a person’s sleep and health.
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