Zap your brain. Boost your strength? Controversial headbands hit the market

Halo Sport is one of a growing number of devices that claim to improve brain function by sending a mild electric current through the skull. The device is being used by elite athletes and will soon be available to the public. But experts say more research is needed to determine if there are long-term side effects.

from CBC | Health News http://ift.tt/1NRAw3W