If you've been looking for a sign to work on your sleep hygiene, this is it. A new study suggests that a particular wave of sleep, called slow-wave sleep, plays an integral role in staving off ...

Slow waves that usually only occur in the brain during sleep are also present during wakefulness in people with epilepsy and may protect against increased brain excitability associated with the ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Loss of slow-wave sleep as you age may ...