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A Fitbit Saved His Life? Well, Maybe

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Ben Lecomte has swum across the Atlantic Ocean, and now he aims to traverse the Pacific, which will take him five or six months. Bongani Mlambo/The Longest Swim hide caption

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Can Extreme Exercise Hurt Your Heart? Swim The Pacific To Find Out

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Twitter changed its "favorite" star icon to a "like" heart icon prompting largely negative responses from Twitter users. But is it the heart they hate? Or the change itself? Screenshot by NPR hide caption

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In addition to heart problems triggered by some supplements, emergencies often arise when kids swallow dietary supplements meant for adults, according to the CDC analysis, or when older adults choke on the pills. Lee Woodgate/Ikon Images/Corbis hide caption

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Dietary Supplements Send Thousands To ERs Yearly

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A Metronome Can Help Set The CPR Beat

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Members of the Mormon Tabernacle Choir raise their voices in unison — and perhaps unify their heart rates, too. George Frey/Getty Images hide caption

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