Know the signs of a mini-stroke.  A transient ischemic attack (TIA) can mean that you have an increased chance of having a full-fledged stroke, but there are steps you can take.
D006801:Humans; D002546:Ischemic Attack, Transient / Q000175:diagnosis* / Q000503:physiopathology; D040242:Risk Reduction Behavior; D020521:Stroke / Q000453:epidemiology / Q000517:prevention & control