Blood Flow May Explain Link Between Sleep Apnea & Stroke

Research has shown that obstructive sleep apnea (OSA) increases your risk of stroke. According to the UCLA Stroke Center, OSA is found in almost 50 percent of stroke patients. But the mechanism by which sleep apnea increases stroke risk has been unknown.A new study may provide an answer. It shows that people with sleep apnea have decreased blood flow velocity in the brain’s arteries. Their brains