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Why Sleeping Less Than Seven Hours a Night Is a Recipe for Ill Health and a Shortened Life Span

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  • Getting quality sleep, and enough of it, is the single most effective thing you can do to reset your brain and body and invigorate your health on a daily basis
  • Lack of sleep has been shown to raise your risk for chronic illnesses such as dementia, cancer, diabetes, heart disease and obesity. The World Health Organization has declared shift work a “probable human carcinogen” because it causes circadian disruption
  • Research has shown that a single night of sleeping just four hours lowers the amount of natural killer cells — powerful immune fighters that target malignant cells — by 70 percent
  • During REM sleep, the visual, motor/kinesthetic, emotional and memory centers ramp up their activity. Meanwhile, your prefrontal cortex — the “CEO of the brain” that rules rationality and logical thinking — shuts down
  • Extreme sleep deprivation can cause delusions, hallucinations and irrational or psychotic behavior, caused by the fact that your brain goes to sleep and you begin to experience your dreams while awake

By Dr. Mercola

In the featured video, Joe Rogan interviews professor Matthew Walker, Ph.D., founder and director of the University of California Berkeley's Center for Human Sleep Science and author of the book "Why We Sleep: The New Science of Sleep and Dreams," in which he shares the latest discoveries about sleep and how it impacts virtually every area of your physical and mental health.


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