Hayden Allen, who had been told he would never walk again after injuring his spinal cord in a motorcycle accident, can now stand, walk, and even go up and down steps thanks to a pair of robotic legs. The revolutionary invention, dubbed Rex (Robotic Exoskeleton), has allowed Allen newfound mobility at home and work, as well as provided him with health benefits associated with spending less time in a wheelchair. Further details and video available at Mail Online.