Glossary
Narcolepsy: A condition characterized by an extreme tendency to fall asleepNon-REM sleep: Non-rapid eye movement sleep marked by slower brain activity and divided into light sleep and deep sleep stages
Parasomnia: A category of sleep disorders characterized by abnormal or unusual behaviors of the nervous system occurring during sleep, apart from sleep apnea
REM sleep: Rapid eye movement sleep during which brain is highly active and is associated with dreaming
Sleep apnea: A serious sleep disorder characterized by interrupted breathing during sleep
