Soldier shows off his mind-controlled bionic limb
11 December 2013 Last updated at 16:46 GMT
A former soldier has been fitted with what's thought to be Britain's first mind-controlled bionic limb.
Corporal Andrew Garthwaite has been given the high-tech hand after he was injured in Afghanistan three years ago.
The device is one of the most advanced prosthetic arms available - Andy can use his brain to control it.
Unlike most prosthetic limbs this one can be controlled by thought alone: Andy just has to think about moving his arm and the robotic arm will move.
Leah reports on this amazing step forward for medical science.