Heart and Stroke Encyclopedia

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Welcome to the Heart and Stroke Encyclopedia. We hope this A to Z guide will be a valuable tool as you learn more about heart disease and stroke. The entries within include definitions and descriptions of various cardiovascular topics, lifestyle recommendations, statistics and links to American Heart Association scientific statements, guidelines and more.

Be sure to bookmark this page  on your Internet browser.

If you do not find the information you are seeking in this encyclopedia, call the American Heart Association at 1-800-AHA-USA1 or use the search feature on our website at www.heart.org.
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Stories from the Heart

Lorena Rivera
How well do you know the warning signs of a stroke? Lorena Rivera is a nurse, and she thought she knew them pretty well – until a series of mini strokes uncovered the fact she’d already had two strokes. Now she’s working to help spread awareness. Read her story.


Who Will You Give For