"This is when the brain becomes more active and ... These stages are the most dangerous because after five days of sleep deprivation, and if you've been hallucinating, you may also experience ...

That's because sleep deprivation slows down our brain cells' ability to talk to each other. So if you actually are drinking alcohol, drowsiness can increase its effects. And while caffeine could ...

Our floodlit society has made sleep deprivation a lifestyle ... Redder light is best at night because it has less power to alert the brain or reset the biological clock. Yet an imbalance between ...

It can be hard to think clearly after a bad night’s sleep ... deprivation. The study didn’t look at why this happens—it simply found a link. However, there are some theories. "The brain ...

Sleep Deprivation Lets Intrusive Memories ... MRI scans show that well-rested people have more control over regions of the brain that manage memories, results show. “This is really important ...

Sleep expert Matthew Walker breaks down the many effects of sleep deprivation ... in the brain that is called beta-amyloid and that is associated with Alzheimer's disease because it is during ...