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Stem cell therapies: why they're expensive, unproven and often dangerous

By Darius Widera, Associate Professor, Stem Cell Biology and Regenerative Medicine, University of Reading

Rogue clinics selling stem cell therapies are popping up everywhere. There are thousands of them around the world, and they claim to be able to cure everything from autism to cerebral palsy.

The highest concentration of stem cell therapy clinics is in the US, Mexico, India and China. And people are travelling far and wide to get these treatments, leading to a phenomenon known as stem cell tourism.

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