Question

zack was diagnosed with obstructive sleep apnea (osa). his doctor may include diet and exercise as part of his treatment regimen because
a) greater physical endurance will help in fighting his condition.
b) losing weight will decrease his risk of developing central sleep apnea.
c) losing weight may reduce his osa symptoms.
d) he will have more energy during the day to combat his usual sleepiness.

Explanation:

Obstructive sleep apnea (OSA) is often associated with excess weight. Fat deposits around the neck can narrow the airway. Losing weight (through diet and exercise) can reduce these fat deposits, potentially widening the airway and reducing OSA symptoms.

• Option A: Physical endurance itself is not the main factor in treating OSA. The key is airway - related.
• Option B: Diet and exercise for OSA treatment are mainly about the current OSA (obstructive), not preventing central sleep apnea. Central sleep apnea has different causes (related to brain - breathing control).
• Option D: While having more energy during the day is a side - effect of a healthier lifestyle (diet and exercise), it is not the direct reason for including diet and exercise in OSA treatment. The direct reason is related to airway patency improvement.

Answer:

C. losing weight may reduce his OSA symptoms.