Your friend has experienced excessive daytime sleepiness. He is laughing with you and suddenly falls to the ground. Your friend is probably suffering from __________

Question

Quizplus · Accepted Answer

Excessive daytime sleepiness and sudden falls are both common symptoms of narcolepsy, a sleep disorder characterized by sudden and uncontrollable episodes of sleep. The laughter may have triggered a cataplexy episode, which is also common in narcolepsy and is characterized by a sudden loss of muscle tone and control. Parasomnia and REM rebound refer to different sleep conditions and are not consistent with the described symptoms. Sleep apnea typically presents with episodes of breathing cessation during sleep, which is not indicated in the scenario.

Your Friend Has Experienced Excessive Daytime Sleepiness