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Home > Medical Services > Sleep Center > Learn About Sleep Disorders > Obstructive Sleep Apnea Syndrome
The muscles that stiffen and open the throat tend to relax during sleep, causing the throat's opening to narrow slightly. In people with Obstructive Sleep Apnea Syndrome (OSAS), this narrowing is so great that breathing becomes difficult. Eventually the person is awakened and falls back to sleep dozens to hundreds of times each night.
OSAS often occurs in overweight people, as fatty tissue in the neck affects the size or shape of the breathing passage. OSAS is not exclusive to over weight people. If you have OSAS, you may not be getting enough oxygen during sleep and probably don't sleep soundly.
Not getting enough sleep at night? Take the Sleep Disorder Quiz to discover what may cause a sleepless night.
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