Researchers may have found a way to get the benefits of sleep through artificial naps, but the research is far from complete.

It's a luxury card for those who fly frequently with Delta and can maximize the card's rich benefits. Those seeking a lower annual fee and more flexibility have other options.

Andrew Huberman, Ph.D., shared the science-backed morning and evening routines that are guaranteed to boost your focus during ...

Our opinions are our own. It can deliver value to Delta devotees, but thanks to its increased annual fee, it's not the no-brainer it used to be.

REM stages and one REM stage. Ideally, you repeatedly cycle through each stage. Learn how long each stage lasts.

Sleep deprivation harms cognition, immunity, and longevity. Science-backed tips to optimize rest and reclaim your health.

Dream recall is associated with age, attitude toward dreaming, sleep patterns, and seasonal changes among healthy adults.

Shorter slow wave sleep and rapid eye movement sleep were associated with decreased volume in Alzheimer disease-vulnerable brain regions.

Obstructive sleep apnea (OSA)—when the soft tissues in the throat collapse and block the airway—especially correlates to ...