Obstructive Sleep Apnea

Multiple Choice

Obstructive sleep apnea:

A) is twice as common in women as it is in men; among middle-aged adults 1 out of 25 women and 1 out of 50 men have obstructive sleep apnea.
B) is caused by very low or nonexistent levels of neurotransmitters called hypocretins.
C) is more common in men than in women.
D) is the most common symptom of narcolepsy.