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According to the American Stroke Association, someone in the United States has a stroke every 40 seconds. A stroke occurs when blood flow to the brain is interrupted. The earlier someone seeks medical attention, the greater chance they will have for recovery.

An easy way to know what to do during a stroke is to remember BE FAST.

Stroke Warning Signs - loss of balance, trouble seeing, face drooping, sudden numbness in arms, difficulty talking. Call 911.

Dr. David Huang speaks about the signs of stroke in an interview with WCHL.