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  2. Sleep deprivation - Wikipedia

    en.wikipedia.org/wiki/Sleep_deprivation

    Sleep deprivation, also known as sleep insufficiency [2] or sleeplessness, is the condition of not having adequate duration and/or quality of sleep to support decent alertness, performance, and health. It can be either chronic or acute and may vary widely in severity.

  3. Sleep - Wikipedia

    en.wikipedia.org/wiki/Sleep

    Sleep is divided into two broad types: non-rapid eye movement (non-REM or NREM) sleep and rapid eye movement (REM) sleep. Non-REM and REM sleep are so different that physiologists identify them as distinct behavioral states. Non-REM sleep occurs first and after a transitional period is called slow-wave sleep or deep sleep.

  4. Neuroscience of sleep - Wikipedia

    en.wikipedia.org/wiki/Neuroscience_of_sleep

    REM sleep is considered closer to wakefulness and is characterized by rapid eye movement and muscle atonia. NREM is considered to be deep sleep (the deepest part of NREM is called slow wave sleep), and is characterized by lack of prominent eye movement, or muscle paralysis. Especially during non-REM sleep, the brain uses significantly less ...

  5. Sensory processing disorder - Wikipedia

    en.wikipedia.org/wiki/Sensory_processing_disorder

    Sensory processing disorder (SPD, formerly known as sensory integration dysfunction) is a condition in which multisensory input is not adequately processed in order to provide appropriate responses to the demands of the environment.

  6. Is 4 hours of sleep enough? What sleeping too little does to ...

    www.aol.com/news/4-hours-sleep-enough-sleeping...

    Since the REM stages typically occur during the second half of sleep, sleeping too little may not allow the body enough time to complete all the REM sleep cycles, per the National Sleep Foundation.

  7. Sensory processing - Wikipedia

    en.wikipedia.org/wiki/Sensory_processing

    Sensory based motor disorder. Patients have incorrect processing of motor information that leads to poor motor skills. Sensory processing disorder or sensory discrimination disorder, which is characterized by postural control problems, lack of attentiveness, and disorganization. There are several therapies used to treat SPD.

  8. Memory - Wikipedia

    en.wikipedia.org/wiki/Memory

    During sleep, the hippocampus replays the events of the day for the neocortex. The neocortex then reviews and processes memories, which moves them into long-term memory. When one does not get enough sleep it makes it more difficult to learn as these neural connections are not as strong, resulting in a lower retention rate of memories.

  9. Not getting enough sleep could increase your risk of Alzheimer's

    www.aol.com/article/lifestyle/2017/07/08/not...

    Not getting enough sleep doesn't feel good — and could have some scary long-term consequences. Insufficient or poor-quality sleep has been shown to wreck short term memory, cause weight gain ...