Researchers have long wished to understand the connection between sleep and memory, especially how the brain encodes long-term memories during slow-wave sleep (while discarding others), or the deep ...

Chronic insomnia in adults aged 60 years and older is associated with worse cognitive performance across several executive functions.

(CNN) — A 38-year-old man repeatedly tries to force his wife to have sex in the middle of the night but has no memory of his actions when he wakes up. (CNN) — A 38-year-old man repeatedly tries to ...

Deep sleep refers to slow-wave sleep — a stage in the sleep cycle when brain waves slow down. Getting enough deep sleep is crucial for numerous bodily functions. But how to increase deep sleep isn’t ...

Many people have problems dropping off as they age, but disrupted nights shouldn’t be inevitable – here, experts suggest solutions that may help.

Have you ever wondered what actually happens in the brain during sleep? While your body appears still and at rest, your brain remains highly active, carrying out essential processes that keep you ...