Delta wave sleep enhances creativity, improves problem-solving abilities, and helps consolidate learning and memory formation in ways that lighter sleep stages simply cannot achieve.

This latter "slow-wave sleep" typically comprises up to 20% of a good night's rest—but it won't happen under disruptive conditions, such as sleep apnea, caffeine overconsumption, insomnia, or ...

Researchers at the University of Tsukuba have discovered that the so-called "multi-task exercise," which combines cognitive ...

High delta wave activity. Some research has linked sleep inertia with increased delta waves, electrical waves in the brain usually seen during NREM (non-rapid eye movement) sleep.

Don’t sleep on an early bedtime. The average American goes to bed at 11.39 p.m., but one expert says we should be preparing for shut eye hours earlier than that. Nutritionist Kate Booker says the best ...