Sleep helps the brain to cleanse itself—and now this process can be measured in humans entirely noninvasively. Researchers at the University of Oulu have developed a method that allows the increased ...

Sleep deprivation causes irritability, relationship issues, depression, anxiety, weight gain, medical problems, cognitive deficits, impaired work performance, car crashes, and a host of other ills way ...

The factors that govern the timing and duration of sleep and wakefulness continue to be a focal point of vigorous research within the scientific community. Nearly four decades ago, the two-process ...

Struggling to fall asleep or stay asleep? What you eat—and when you eat it—could quietly be affecting your sleep more than ...

Try side sleeping to boost your brain’s nightly cleanup—research shows it may clear Alzheimer’s-linked proteins more ...

Some people are genetically built to require less sleep than the rest of us. Albert Joseph Moore / Public Domain Everyone has heard that it’s vital to get seven to nine hours of sleep a night, a ...

There is no longer any doubt. Sleep does improve the gelling or consolidation of memory for recently encoded information. Research is now focusing on how this happens and what other factors interact ...

In today’s digital environment, screens are nearly impossible to avoid. Smartphones, tablets, laptops, and televisions are ...