
In a nutshell, a stroke occurs when blood supply to the brain is interrupted or reduced. This may be caused either by a blocked artery (ischemic stroke) or a burst blood vessel (hemorrhagic stroke). Depending on the severity of the episode, a stroke may cause temporary or long-term complications, such as loss of muscle movement, difficulty in speaking, or even memory loss. The Centers for Disease Control (CDC) and Prevention, based on a 2014 update that the American Heart Association posted in its journal Circulation, identifies high cholesterol, high blood pressure and/or smoking as the major risk factors for stroke.
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