A study identified five sleep types that could be linked to mental well-being, bedtime habits and brain activity. The ...

Busy people sometimes say that they will “sleep when they are dead.” The irony is that sleep deprivation harms your health ...

It can be dangerous to go without sleeping, even for a day. Longer-term sleep deprivation can cause cognitive impairment, hallucinations, and other side effects. The longest recorded time without ...

The truth is, this situation with Britney feels like it’s racing toward something irreversible,” the former backup dancer ...

The effects of transcranial direct current stimulation on cortical dynamics depend on the state of consciousness and the stimulation polarity.

A May 2008 study in the Journal of Neuroscience finds that losing just one night of sleep makes the brain unstable and prone to sudden shutdowns. Questions and answers.