Researchers from the University of Wisconsin are the first to link sleep apnea to a higher rate of cancer death.
The UW School of Medicine and Public Health found someone who has both cancer and sleep apnea is nearly five times more likely to die from that cancer, than someone who does not suffer from sleep apnea.
Researchers believe the lack of oxygen caused by sleep apnea can increase vascular growth and tumor growth.
They studied more than 1,500 patients for this study, beginning in 1989.
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