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  2. Do You Really Need 8 Hours Of Sleep? Why Experts Are ... - AOL

    www.aol.com/lifestyle/really-8-hours-sleep-why...

    Sleep Advice That Stands The Test Of Time 1/ Think Twice About Booze . If you want better sleep, take stock of your alcohol habits. Before bed, alcohol helps you fall asleep, but too much severely ...

  3. Experts Break Down How Much Sleep You Really Need and ... - AOL

    www.aol.com/experts-break-down-much-sleep...

    If you're someone who likes to sleep in on weekends and be a night owl during the work week, listen up: Recent research out of the University of Colorado Boulder suggests that people who regularly ...

  4. Not Everyone Needs the Same Amount of Sleep. Here's Why - AOL

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    Credit - Universal Images Group via Getty; JT Vintage/ Glasshouse Images. M y bed and I spend less time together than the experts say we should. Most nights, my head hits the pillow around 11:00 ...

  5. Sleep and metabolism - Wikipedia

    en.wikipedia.org/wiki/Sleep_and_Metabolism

    Sleep plays a vital role in regulating metabolism and appetite. When sleep deprived, the metabolic system will be out of balance, which will ultimately affect the dietary choices people make. Teens who are sleep deprived crave more carbohydrates. Sleep deprivation is a risk factor for obesity among young adults. [7] [medical citation needed]

  6. Neuroscience of sleep - Wikipedia

    en.wikipedia.org/wiki/Neuroscience_of_sleep

    One of the important questions in sleep research is clearly defining the sleep state. This problem arises because sleep was traditionally defined as a state of consciousness and not as a physiological state, [14] [15] thus there was no clear definition of what minimum set of events constitute sleep and distinguish it from other states of partial or no consciousness.

  7. Sleep - Wikipedia

    en.wikipedia.org/wiki/Sleep

    The whole period normally proceeds in the order: N1 → N2 → N3 → N2 → REM. REM sleep occurs as a person returns to stage 2 or 1 from a deep sleep. [20] There is a greater amount of deep sleep (stage N3) earlier in the night, while the proportion of REM sleep increases in the two cycles just before natural awakening. [17]