Stroke
is a sudden onset of focal neurological signs including difficulty with speech and weakness or loss of sensation on one side of the body. Common risk factors are high blood pressure, diabetes, high cholesterol, heart disease, obesity and smoking.
With any of these signs, call 9-1-1. This is a medical emergency.

External Help Links referring to Stroke:
http://www.cdc.gov/stroke/
http://www.stroke.org/
http://www.cdc.gov/dhdsp/library/fs_aian.htm

Video segment taken from the film.