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  2. Sleep cycle - Wikipedia

    en.wikipedia.org/wiki/Sleep_cycle

    Sleep cycle. The sleep cycle is an oscillation between the slow-wave and REM (paradoxical) phases of sleep. It is sometimes called the ultradian sleep cycle, sleep–dream cycle, or REM-NREM cycle, to distinguish it from the circadian alternation between sleep and wakefulness. In humans, this cycle takes 70 to 110 minutes (90 ± 20 minutes). [1]

  3. Sleep - Wikipedia

    en.wikipedia.org/wiki/Sleep

    Sleep. Sleeping Girl, Domenico Fetti, c. 1615. 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 interactions with the surrounding environment.

  4. Neuroscience of sleep - Wikipedia

    en.wikipedia.org/wiki/Neuroscience_of_sleep

    Neuroscience of sleep. The neuroscience of sleep is the study of the neuroscientific and physiological basis of the nature of sleep and its functions. Traditionally, sleep has been studied as part of psychology and medicine. [1] The study of sleep from a neuroscience perspective grew to prominence with advances in technology and the ...

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

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

    Set your room temperature between 60 and 67°F (or use a fan to help keep you cool) and use tools like a sleep mask, blackout curtains, and sleep headphones or earplugs if you need to block out ...

  6. Sleep deprivation - Wikipedia

    en.wikipedia.org/wiki/Sleep_deprivation

    The average adult needs to sleep for 7 to 8 hours every 24 hours, and sleep deprivation can occur if they do not get enough sleep. [3] Acute sleep deprivation is when a person sleeps less than usual or does not sleep at all for a short period of time, normally lasting one to two days, but tends to follow the sleepless pattern for longer with no ...

  7. Sleep disorder - Wikipedia

    en.wikipedia.org/wiki/Sleep_disorder

    Sleep disorder. A sleep disorder, or somnipathy, is a medical disorder of an individual's sleep patterns. Some sleep disorders are severe enough to interfere with normal physical, mental, social and emotional functioning. Sleep disorders are frequent and can have serious consequences on patients' health and quality of life. [1]

  8. Sleep and breathing - Wikipedia

    en.wikipedia.org/wiki/Sleep_and_breathing

    Central sleep apnea syndrome. Sleep apnea (or sleep apnoea in British English; /æpˈniːə/) is a sleep disorder characterized by pauses in breathing or instances of shallow or infrequent breathing during sleep. Each pause in breathing, called an apnea, can last for several seconds to several minutes, and may occur 5 to 30 times or more in an ...

  9. Slow-wave sleep - Wikipedia

    en.wikipedia.org/wiki/Slow-wave_sleep

    Slow-wave sleep (SWS), often referred to as deep sleep, is the third stage of non-rapid eye movement sleep (NREM), where electroencephalography activity is characterised by slow delta waves. [ 2 ] Slow-wave sleep usually lasts between 70 and 90 minutes, taking place during the first hours of the night. [ 3 ]

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