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  2. Sleep deprivation - Wikipedia

    en.wikipedia.org/wiki/Sleep_deprivation

    For healthy individuals with normal sleep, the appropriate sleep duration for school-aged children is between 9 and 11 hours. [4] [5] Acute sleep deprivation occurs when a person sleeps less than usual or does not sleep at all for a short period, typically lasting one to two days. However, if the sleepless pattern persists without external ...

  3. Daytime sleepiness may be a sign of higher dementia risk - AOL

    www.aol.com/daytime-sleepiness-may-sign-higher...

    Older adults who are excessively sleepy during the day or have significant sleep issues are at higher risk for a pre-dementia condition called motoric cognitive risk syndrome (MCR), according to a ...

  4. Why getting more deep sleep may help improve memory - AOL

    www.aol.com/why-getting-more-deep-sleep...

    Past studies show proper sleep can help improve a person’s heart health, supports their immune system, and helps reduce stress, just to name a few. Sleep is also important for brain health, as ...

  5. Study shows women need more sleep than men because their ...

    www.aol.com/news/2016-03-11-study-shows-women...

    Professor Jim Horne, director of Loughborough University's Sleep Research Centre, explains that "for women, poor sleep is strongly associated with high levels of psychological distress and greater ...

  6. Effects of sleep deprivation on cognitive performance

    en.wikipedia.org/wiki/Effects_of_sleep...

    It showed a decrease in the subjects ability to "plan on the fly" and overall outcomes were less than those of well-rested cadets. [36] Another psychological test used to assess planning, decision making and other executive functions is the Tower of London test. After 45–50 hours of sleep deprivation, a study found subjects took longer and ...

  7. Bedtime procrastination - Wikipedia

    en.wikipedia.org/wiki/Bedtime_procrastination

    Habitual smartphone overuse results in bedtime procrastination, and shorter sleep duration and lower sleep quality may trigger many negative emotions responsible for depression and anxiety. [12] Statistics show that disturbed sleep patterns are increasingly common. In 2013, an estimated 40% of U.S. adults slept less than the recommended amount ...

  8. 5 sleep tips to get better rest during the busy holiday season

    www.aol.com/news/5-sleep-tips-better-rest...

    Getting a good night's sleep can be a little more challenging amid the hype of the holidays. With changes in routine, diet and potentially time zones, quality sleep could be difficult to come by ...

  9. Insomnia - Wikipedia

    en.wikipedia.org/wiki/Insomnia

    Severe insomnia – sleeping less than 3.5 hours in women and 4.5 hours in men – is associated with a 15% increase in mortality, while getting 8.5 or more hours of sleep per night was associated with a 15% higher mortality rate. [206]