A stroke, also called a cerebrovascular accident, is when damage occurs to the brain from an interruption or reduction of its blood supply. Brain cells begin to die in minutes so prompt treatment by a doctor is crucial.

Signs of a person actively having a stroke:
-Sudden weakness or numbness on one side of the face or body.
-Sudden difficulty speaking or confusion.
-Sudden difficulty seeing in one or both eyes.
-Sudden dizziness, trouble walking or loss of balance.
-Sudden severe headache with no known cause.

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(SOURCE: BLKANDFIT.COM)