NEW HAVEN, Conn. (WTNH) — It’s estimated that someone has a stroke in the U.S. every 40 seconds.

Dr. Patrick Thompson, a vascular surgeon with the Hartford HealthCare Heart and Vascular Institute at Midstate Medical Center, says that knowing the symptoms or risk factors can possibly save your life.

Thompson explains what causes a stroke, the signs that could indicate a stroke, and how a vascular surgeon is involved in stroke care.

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Watch the interview in the video player above.