Eighteen to 20 million Americans have sleep disorders, reducing the way they function throughout the day, increasing their chances of falling asleep while driving, and harming their health by placing stress on the heart and other body functions.
The only sure way to diagnose a sleep disorder is to undergo a sleep study, in which specialists observe a person's nighttime breathing, oxygenation, sleep rhythms and nocturnal movements. Sleeping rooms are equipped with microphones, EEG machines and video recorders that allow a patient to be thoroughly evaluated. The first step in a sleep consultation is filling out a detailed questionnaire about your sleep habits.
Take this interactive test (a shorter version of a sleep questionnaire) to find out whether you should consult your doctor about your sleep trouble.