Twin sisters Olivia (right) and Sofia Hart were diagnosed a with rare genetic condition that…

President Dwight D. Eisenhower uses a stethoscope to listen to the heart of Dr. Paul…

Heart transplant recipient Katherine Herrmann (right) with her husband, Ian, on their wedding day in…

Volunteers help children learn CPR during the Buffalo Bills’ training camp in Rochester, New York,…

Dr. Julianne Holt-Lunstad (far right) with four of her siblings. (Photo courtesy of Dr. Julianne…

(melitas/iStock via Getty Images) Lea en español A century ago, so little was known about…

Dr. William Montague Cobb speaks at Beth Israel Hospital in Boston. (Photo courtesy of Beth…

Cardiac arrest survivor Memphis Zabawa. (Photo courtesy of the Zabawa family) Memphis Zabawa loves playing…

(FG Trade Latin/E+ via Getty Images) On Super Bowl Sunday, you look forward to watching…

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