The Human Body

Print your own body parts

For people who are missing limbs, 3D printing can make new prosthetics – faster, cheaper and better. It could transform mobility for millions around the world, reports Ian Birrell.

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How much does it hurt?

Aching, throbbing, searing, excruciating – pain is difficult to describe and impossible to see. So how can doctors measure it? John Walsh finds out about new ways of assessing the agony.