Examlex
Brown dwarfs most commonly form in the nebular disk around another object, much like aplanet.
N3 Sleep
The third stage of non-REM sleep that is characterized by deep, restorative sleep and the presence of delta waves in brain activity.
REM Rebound
The phenomenon where there is an increased frequency and intensity of REM (Rapid Eye Movement) sleep after periods of REM sleep deprivation.
Narcolepsy
An enduring disorder of sleep featuring overpowering drowsiness in daytime hours and sudden instances of sleeping.
Sleepwalking
A sleep disorder causing people to get up and walk around during deep sleep, often with no memory of the event.
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