The science of a broken heart

Valentine's Day is a time to celerate the power of love, and all the joy it can bring. But Cupid's arrow is doubled-edged: We have all had our hearts broken, or know someone who has.

"It's a popular belief that the heart is the center of emotion and can actually break. There is some truth to that," says Viola Vaccarino, chair of epidemiology at Emory's Rollins School of Public Health. Watch the above video to learn more.

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The chemical basis of love
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