This video segment adapted from NOVA scienceNOW considers the purpose of sleep and, in particular, the connection it shares with memory. By studying the dreams of rats, researchers are hoping to gain ...

In the last several years, books and articles have increasingly drawn attention to the key role of sleep in preserving good health. In the long run, better sleep may have protective effects on risk ...

Slow wave or deep sleep is a stage in the sleep cycle necessary for proper brain function and memory. Most people need 7–9 hours of sleep per night, but working out how much deep sleep they need is ...

Sleep needs vary dramatically between individuals, with genetics and lifestyle playing bigger roles than previously understood In a world that often glorifies hustle culture and productivity hacks, ...