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The closure
of the airway, called obstructive apnoea causes the affected
person to wake up. Once awake their airway opens and normal breathing resumes
allowing the person to quickly go back to sleep only to have the airways relax,
initiating the next apnea.
This sequence
of events may be repeated over and over again - up to hundreds of times a
night! This condition is known as Obstructive Sleep Apnoea (OSA).
As a result
of the continual awakenings caused by OSA, those affected suffer from severe
sleep deprivation and fatigue. Unfortunately, people
with this condition are often completely unaware that they have been woken
up throughout the night and are oblivious to the reason for their tiredness.
Up to
9% of the middle-aged population has OSA. Loud snoring punctuated
with pauses can be a sign that maybe someone is effected by this condition.
Being overweight may also increase the likelihood of having
OSA along with a family history of this condition, and structural
abnormalities of the upper airways.
Untreated OSA
may lead to serious health problems such as high blood pressure, heart
attack and stroke. OSA also causes memory loss,
poor concentration, morning headaches and sexual dysfunction.
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