Learn more about 11 celebrities who live with insomnia, the sleep condition that causes trouble falling or staying asleep, and how they manage it to lead healthier lives.

A new study finds that sleep timing is linked to dementia risk, as people with weak circadian rhythms face a 2.5 times higher risk of developing cognitive decline.

(CNN) — Do you get enough shut-eye? We know a good night’s sleep is essential for health, yet many do not consistently get enough of it. About 1 in 3 American adults do not regularly get recommended ...