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  2. Rapid eye movement sleep - Wikipedia

    en.wikipedia.org/wiki/Rapid_eye_movement_sleep

    REM sleep is physiologically different from the other phases of sleep, which are collectively referred to as non-REM sleep (NREM sleep, NREMS, synchronized sleep). The absence of visual and auditory stimulation ( sensory deprivation ) during REM sleep can cause hallucinations .

  3. How can you get more REM sleep? Here's what experts say. - AOL

    www.aol.com/lifestyle/more-rem-sleep-heres...

    What causes a lack of REM sleep? Sleep deprivation impacts all sleep states, and it's probably the most common cause of decreased REM sleep, St. Louis says. Primary sleep disorders such as chronic ...

  4. Sleep deprivation - Wikipedia

    en.wikipedia.org/wiki/Sleep_deprivation

    REM sleep deprivation causes an increase in noradrenaline (which incidentally causes the person sleep deprived to be stressed) due to the neurons in the locus coeruleus producing it not ceasing to do so, which causes an increase in the activity of the Na⁺/K⁺-ATPase pump, which itself activates the intrinsic pathway of apoptosis [41] and ...

  5. REM rebound - Wikipedia

    en.wikipedia.org/wiki/REM_rebound

    REM rebound is the lengthening and increasing frequency and depth of rapid eye movement (REM) sleep which occurs after periods of sleep deprivation. When people have been prevented from experiencing REM, they take less time than usual to attain the REM state. [ 1 ]

  6. 10 Tips to Increase REM Sleep Naturally - AOL

    www.aol.com/lifestyle/10-tips-increase-rem-sleep...

    Each sleep cycle lasts about 90 to 110 minutes and includes stages that fall into two main phases: non-REM (or NREM) sleep and REM sleep. Non-REM sleep has three sub-stages: light sleep, deep ...

  7. 6 Signs You've Got "Sleep Debt" (& How To Finally Pay It Off)

    www.aol.com/6-signs-youve-got-sleep-105800524.html

    Sleep deprivation is when you consistently don’t get enough sleep or are only getting poor-quality sleep. ... Sleeping longer during the day will lead to a deeper sleep state (known as the REM ...

  8. Non-rapid eye movement sleep - Wikipedia

    en.wikipedia.org/wiki/Non-rapid_eye_movement_sleep

    In rats, after a 24-hour sleep deprivation, it was found that there was an increase of slow-wave activity in NREM sleep, [42] which corresponds directly with the human brain which when sleep deprived, prioritizes NREM sleep over REM sleep, implying that the NREM sleep is responsible for regulating and compensating for missed sleep. [43]

  9. Sleep - Wikipedia

    en.wikipedia.org/wiki/Sleep

    REM sleep, also known as paradoxical sleep, represents a smaller portion of total sleep time. It is the main occasion for dreams (or nightmares), and is associated with desynchronized and fast brain waves, eye movements, loss of muscle tone, [18] and suspension of homeostasis. [19] The sleep cycle of alternate NREM and REM sleep takes an ...

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