New research identifies five distinct sleep subtypes, revealing links between brain patterns, behavior and health ...

She didn’t need any words because sometimes words fail us, or we're just not ready to hear them. Think about how many times ...

Our brains are constantly looking for ways to make our lives easier. When a behavior leads to something rewarding, the brain ...

Although sometimes portrayed in film and television as simply "falling asleep without warning," the reality of narcolepsy is ...