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

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

    Is 4 hours of sleep enough? Experts explain what happens to your body when you sleep four hours, health effects of sleep deprivation and tips to improve sleep.

  3. Exercise and deep sleep give the brain a 24-hour boost - AOL

    www.aol.com/exercise-deep-sleep-brain-24...

    Improvement to cognitive performance caused by exercise could last for 24 hours, a new study shows. Scientists also linked getting 6 or more hours of sleep to better memory test scores the next day.

  4. What Is Deep Sleep? Understanding the 4 Sleep Cycles & Why ...

    www.aol.com/deep-sleep-understanding-4-sleep...

    Most people get around 1.5 to two hours of slow-wave sleep if they get eight hours of shut-eye. This stage is key to waking up refreshed and ready for the day — and it’s what you’re hoping ...

  5. Sleep deprivation - Wikipedia

    en.wikipedia.org/wiki/Sleep_deprivation

    A 2004 editorial in the journal Sleep stated that, according to the available data, the average number of hours of sleep in a 24-hour period has not changed significantly in recent decades among adults. Furthermore, the editorial suggests that there is a range of normal sleep time required by healthy adults, and many indicators used to suggest ...

  6. Sleep hygiene - Wikipedia

    en.wikipedia.org/wiki/Sleep_hygiene

    Sleep hygiene is a behavioral and environmental practice [2] developed in the late 1970s as a method to help people with mild to moderate insomnia. [2] Clinicians assess the sleep hygiene of people with insomnia and other conditions, such as depression, and offer recommendations based on the assessment.

  7. Excessive daytime sleepiness - Wikipedia

    en.wikipedia.org/wiki/Excessive_daytime_sleepiness

    EDS can be a symptom of a number of factors and disorders. Specialists in sleep medicine are trained to diagnose them. Some are: Insufficient quality or quantity of night time sleep [5] Obstructive sleep apnea [6] Misalignments of the body's circadian pacemaker with the environment (e.g., jet lag, shift work, or other circadian rhythm sleep ...

  8. Doctors Say This Viral "Sleep Rule" Actually Works - AOL

    www.aol.com/doctors-viral-sleep-rule-actually...

    TikTok is filled with tips and tricks — some legitimate, many not — to help you sleep better. One of the latest encourages people to follow a 10-3-2-1-0 sleep rule, which is actually not just ...

  9. Familial natural short sleep - Wikipedia

    en.wikipedia.org/wiki/Familial_natural_short_sleep

    Familial natural short sleep is a rare, genetic, typically inherited trait where an individual sleeps for fewer hours than average without suffering from daytime sleepiness or other consequences of sleep deprivation. This process is entirely natural in this kind of individual, and it is caused by certain genetic mutations.