 Within a few minutes, I was talking again. I didn't know a thing about stroke before I had one. Now I make sure that my friends and family know all the signs of stroke so they'll get help fast if they need it. Know stroke. Know the signs. Act in time. Call 1-800-352-9424 for more information. Brought to you by the U.S. Department of Health and Human Services, National Institutes of Health.