The proliferation of wearable devices is giving physicians some pause about the usability of the data they collect, reports NPR.

Just because a device looks shiny and new doesn't mean it's useful or accurate. "I get information from watching people's body language, tics and tone of voice. Subtleties you just can't get from a Fitbit or some kind of health app," said Paul Abramson, MD, in the story. 

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