A new way to treat diseases

3-D printing is being used to treat serious injuries and perform cosmetic surgery.

Using 3-D printing, researchers at Tsinghua University's Department of Mechanical Engineering can print viable human cells that can live outside the body.

They aren't yet able to regrow hands and feet, like in the science fiction movie Starship Troopers. But 3-D printing technology is already being used to treat diseases, repair organs and perform cosmetic surgery.