Demi Moore was a trouper. Her full concentration was always on the process, according to prosthetic makeup designer Pierre Olivier Persin, speaking from Paris about his work on "The Substance," ...

Prosthetics designers are coming up with new ways to help people feel more comfortable in their own skin. Many mornings, Dani Clode wakes up, straps a robotic thumb to one of her hands, and gets to ...

Alex Smith was 11 years old when he lost his right arm in 2003. A drunk driver operating a boat collided with his family’s vessel on Lake Austin, sending him overboard. He hit a propeller, and his arm ...