“A stroke is a medical emergency that happens when something prevents your brain from getting enough blood flow=lack of 02 to the brain. A blocked blood vessel or bleeding in your brain can cause strokes.  They can be fatal and need immediate treatment. Call 911 or your local emergency services number right away if you think you or someone you’re with is having a stroke.  Strokes are the second leading cause of death worldwide and the fifth most common in the U.S.  The sooner someone is diagnosed and treated, the more likely it is they’ll survive a stroke. Every second counts!”

Cleveland Clinic (Stroke: What It Is, Causes, Symptoms & Treatment)