Why can’t we grow new body parts?

This is an excellent video by Alan Russell, who studies regenerative medicine.

Regenerative medicine is a breakthrough way of thinking about disease and injury by helping the body to rebuild itself. He shows how engineered tissue that “speaks the body’s language” has helped a man regrow his lost fingertip, how stem cells can rebuild damaged heart muscle, and how cell therapy can regenerate the skin of burned soldiers.

This presentation is hosted at TED (Technology, Entertainment, Design). It is a very nice site that hosts talks by world’s greatest thinkers and doers.

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