Our Bodies and Regeneration

Lizards do it, starfish do it, why can't we? Regeneration is something that many would wish for, being able to regrow a finger and maybe even eventually an entire limb, such that loss is not permanent. But how far away is the human body from being able to do such things?

Dr. Rajesh Singh, consultant orthopaedic surgeon, explains the medical science powering this discovery and the limitations of our body.