A new study published in The Journal of Neuroscience has uncovered how the human brain’s internal timing mechanisms shift ...

Feeling tired despite enough hours? Learn how understanding your 90-minute sleep cycles & using a sleep calculator can help ...

Caffeine can make it difficult to fall asleep, but new research suggests it continues to affect your brain long after you’ve ...

Sleep also enables the body to repair and replenish cellular material that is damaged or depleted. Important bodily functions ...

Frontoparietal cerebrovascular pathology is linked to oxygenation during REM sleep, indicating possible connection to Alzheimer Disease.

An alarming symptom that may signal dementia could manifest during the night, a study reveals. This "distressing" sign could ...

Antidepressants that inhibit REM sleep are associated with prolonged survival in people with amyotrophic lateral sclerosis, a ...

Most people use the snooze alarm upon waking — but is the habit sapping vital sleep? Three experts weigh in on how to get the ...

Hitting the snooze button robs your body of restorative REM sleep — and nearly half of us are guilty of this, according to a ...

A study by Mass General Brigham has found that hitting the snooze button on a morning alarm does more harm than good. Not ...