Brain-zapping devices have shocking potential, but are they safe?

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Dr. Daniel Chao shows off the Halo Sport. He claims using it will increase a person’s strength and dexterity. (CBC)

By Aaron Saltzman, CBC News, May 3, 2016 

‘Do it at your own risk. But I wouldn’t,’ says Queen’s University professor

The designers of Halo Sport, a headband they claim can improve athletic performance by shocking the brain, say their device could one day also help improve memory, foreign language acquisition, even math skills.

The wearable device, initially tested and used as a training aid by elite athletes including former Olympic sprinter Michael Johnson and by the U.S. Ski and Snowboard Association, is now being offered to consumers.

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