Melatonin is a commonly-used sleep aid, but does it really work?
A new study found that activating memories through learning-associated sound cues during sleep improved the performance of a motor task
The blood-brain barrier plays a critical role in protecting the brain. However, sleep loss can lower its defenses, increasing the vulnerability of the brain.
General anesthetics are used in millions of surgeries each year, yet we still don’t know exactly how they work.
A newly discovered genetic mutation might explain why some people need only 4-6 hours of sleep each night.