Obstructive sleep apnea is characterized by
a. complete cessation of respiratory activity for brief periods.
b. interruption of air flow and brief cessation of respiratory activity.
c. central nervous system disorders and trauma.
d. interruption of air flow without cessation of respiratory activity.

The correct answer is b.interruption of air flow and brief cessation of respiratory activity.

Explanation:

Obstructive sleep apnea is a disorder in which breathing is stopped for brief period and starts again. This is caused when the airway is blocked due to the muscles in the neck not able to hold wind pipe open and their relaxation cause cessation. One of the main cause of obstructive sleep apnea is obesity.

It leads to loud snoring during sleep, sleeping in daylight due to lack of sleep, headache during morning because of obstructive sleep, lack of concentration, high blood pressure and heart problems.

d yoga because yoga makes your bones very strong

abuse, both physical and emotional. messes with your head. makes you feel like nothing, no matter what anyone else tells you