For people living with narcolepsy, no amount of sleep alleviates the feeling of being tired. While most people are either awake or asleep, narcolepsy feels as if you're never really in either state.

Narcolepsy is relatively common — it's estimated ... refer you to a sleep specialist for a formal diagnosis using two tests: a polysomnogram (PSG) and a multiple sleep latency test (MSLT).

Narcolepsy is a nervous system disorder that involves your brain. You struggle to manage sleep patterns and stay awake. No matter how much rest you got the night before, an intense urge to sleep ...

Ginger Zee provided her fans with a brief health update after undergoing what she described as an “important test.” The Good ...

People with obstructive sleep apnea (OSA) or narcolepsy can feel very sleepy ... A clinical trial is a program that tests the effectiveness and safety of various interventions in people with ...

The monkeys were given a cognitive test after their normal sleep cycle ... Orexin-A had previously been associated with narcolepsy in rats and dogs. This is the first evaluation of orexin-A ...