Sleep apnea is the of cessation of breathing, during sleep, that lasts 10 seconds or longer. It recurs frequently and is associated with snoring. The recurrent obstruction prevents the person from feeling rested. Obesity may be a contributing factor. Sleep apnea is a major explanation for chronic daytime drowsiness. It occurs in all ages, but is most common in adults over 60.
Causes of Sleep Apnea
Sleep apnea is caused by obstruction of air in the upper respiratory tract. This occurs when the muscles that line the upper airway become flaccid. They collapse, and together with redundant tissue in the area, may obstruct the airway. Obesity is a contributing factor to this disorder and weight reduction may sometimes help the disorder. Certain other disorders, such as chronic respiratory system disease, central nervous system disorder, such as a brain tumor, viral brain infection or stroke all may be associated with some form of sleep apnea.
Signs and Symptoms of Sleep Apnea
The diagnosis of sleep apnea should be suspected, if there is chronic or recurrent daytime drowsiness with no other explanation. During sleep, snoring temporarily ceases and is then followed by deep gasps and eventually normal breathing. Some people will wake up with a headache.
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Medical Content Last Updated on 07/12/2008
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