Emergency room doctors used a patient's FitBit to determine how to save his life

Many of us wear fitness trackers to motivate ourselves to be more active. But after a 42-year-old man in New Jersey had a seizure at work, some very smart emergency room doctors used data they saw on his Fitbit Charge HR to decide on the best way to treat him. They decided to reset his heart rate with electrical cardioversion. His Fitbit may have saved his life.

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