Meet the transhumanists. They're tech enthusiasts who augment their own bodies with chips, magnets and chemical enhancements. Jane Wakefield talks to a woman who buries magnets under her skin to sense electrical fields and a man who provides implantable chips as a business. Business Daily asks could body modifications like this soon become mainstream? (Picture: Man transforms into cyborg by implanting machine parts into robotic arm; Credit: mikkelwilliam/Getty Images)