“There’s a new warning for anyone who wears a fitness tracker after some dangerous side effects have been reported. Instead of promoting good health, some have led to a fitness fail. Chris Nelson is an active dad who liked counting his steps and tracking his heart rate with his fitness tracker, but says while putting his three-year-old daughter Emily to bed his Fitbit Charge 2 shocked him.
The jolt caused him to drop his baby. “It was clearly an electric shock,” he told CBS2. Emily wasn’t hurt, but Chris says it left a painful lump on his wrist and caused his hand to go temporarily numb.”