Your fitness tracker can count your steps, but it's not that good at monitoring your heart

Monday, April 10, 2017 - 17:41 in Health & Medicine

Using that nifty fitness monitor to keep track of your heart rate while you exercise? If you exercise while remaining still, it may work pretty well. If you move while exercising, not so much. A study published Monday in the Annals of Internal Medicine put four wearable fitness trackers to the...

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