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Sleep Disorder Elevates Cancer Risk

by Dr. Reeja Tharu on Oct 17 2012 11:13 AM
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According to a study, individuals with Sleep apnea have double the risk of developing cancer.

Sleep apnea is a sleep - related disorder that is  characterized by heavy snoring and cessation of breathing while sleeping. It is linked to obesity, heart disease, diabetes, day time fatigue, high blood pressure and now cancer.

Individuals with sleep apnea are advised treatment, as maintaining a proper level of oxygen while sleeping reduces the risk of related illnesses.

A study conducted revealed that sleep apnea patients with high levels oxygen deprivation carried the biggest risk. Middle aged and overweight individuals are prone to sleep apnea.

In individuals who undergo sleep deprivation - muscles of the airways collapse while the person is asleep, and this causes cessation of breathing. It takes approximately 10 seconds or more before brain signals can - prompt the muscles to work again.

In a recent study, Spanish researchers evaluated more than 5,600 patients from seven sleep clinics. The patients, none of whom had cancer when the study began, were under observation for seven years.

Scientists observed the time and duration of the drop in oxygen in the person’s blood to below 90%, while they were asleep.

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Research revealed that chances of a person getting diagnosed for cancer during the study were enhanced when hypoxemia (oxygen depletion) levels were greater. The risk was directly proportional to the time spent without oxygen, according to Miguel Angel Martinez-Garcia, of La Fe University and Polytechnic Hospital, Valencia, Spain.

Those who spent 14 percent of their sleep with oxygen saturation levels below 90 percent faced twice the risk of deadly cancer than those without sleep apnea.

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The results of this study were presented at the European Respiratory Society Congress in Vienna, Austria.

Source-Medindia


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