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CrossFit

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The massively popular workout program has struck a chord with fitness buffs and weekend warriors alike. While the program is lauded for intense training that promotes a strong sense of community, opponents say the workout could cause serious injury

The massively popular workout program has struck a chord with fitness buffs and weekend warriors alike. While the program is lauded for intense training that promotes a strong sense of community, opponents say the workout could cause serious injury. Dr. Christopher Visco, director of sports medicine at N.Y. Presbyterian, Columbia University Medical Center, joins the "CBS This Morning" co-hosts to discuss the issue.

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Being a couch potato isn't good for your heart, and now a new study finds that the opposite extreme -- too much high-intensity exercise -- can also cause heart problems

Being a couch potato isn't good for your heart, and now a new study finds that the opposite extreme -- too much high-intensity exercise -- can also cause heart problems. Dr. Neica Goldberg, a cardiologist and director of the Joan H. Tisch Center for Women's Health at NYU Langone Medical Center, explains the risks.

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