The condition known as hypertrophic cardiomyopathy, or HCM, is inherited and can be a killer. But some of the genetic mutations once thought linked to the illness are actually harmless, geneticists say. Afton Almaraz/Getty Images hide caption

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Afton Almaraz/Getty Images

Study Of Sudden Cardiac Death Exposes Limits Of Genetic Testing

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Exercise physiologist Courtney Conners checks Mario Oikonomides' vital signs before his cardiac rehab workout at the University of Virginia Health System clinic. Francis Ying/Kaiser Health News hide caption

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Francis Ying/Kaiser Health News

Cardiac Rehab Saves Lives. So Why Don't More Heart Patients Sign Up?

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Linda Johns (lower row, center), in the first moments of her heart attack. She's with fellow authors Kristen Kittscher, Kirby Larson, Suzanne Selfors, Sara Nickerson and Jennifer Longo at Queen Anne Book Co. in Seattle. Courtesy of Linda Johns hide caption

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Courtesy of Linda Johns

Tracy Solomon Clark didn't realize that the shortness of breath and dizziness she felt at age 44 was actually serious heart disease. Benjamin Brian Morris for NPR hide caption

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Benjamin Brian Morris for NPR

Hidden Heart Disease Is The Top Health Threat For U.S. Women

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Katherine Streeter for NPR

What's Good For The Heart Is Good For The Brain

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iStockphoto

A Fitbit Saved His Life? Well, Maybe

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Fatty plaque (shown here in yellow) blocks about 60 percent of this coronary artery's width. The increasing thickness of artery walls is just one factor that can increase vulnerability to a heart attack or stroke. Prof. P.M. Motta/G. Macchiarelli, S.A. Nottola/Science Source hide caption

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Prof. P.M. Motta/G. Macchiarelli, S.A. Nottola/Science Source

Possible Heart Benefits Of Taking Estrogen Get Another Look

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People who drink in moderation tend to be better educated and more well off, which increases their odds of being healthy. Photographer: Katsiaryna Pakhoma/iStockphoto hide caption

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Photographer: Katsiaryna Pakhoma/iStockphoto

Troy Hodge was only 41 years old when a vessel in his brain burst. "You don't think of things you can't do until you can't do them," he says. Matailong Du/NPR hide caption

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Matailong Du/NPR

Strokes On The Rise Among Younger Adults

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Quite a few employers now offer specialized insurance that pays a lump sum to help cover high deductibles triggered by treatment for serious illnesses. Portra Images/Getty Images hide caption

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Portra Images/Getty Images
Hanna Barczyk for NPR

How Sound Reveals The Invisible Within Us

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