An expert on the anatomy, chemistry and psychology of the brain, David Nutt was the perfect choice as chairman of the Advisory Council on the Misuse of Drugs, a British public body that recommends how new or existing drugs should be classified. However, Nutt was famously dismissed from his position when he stated publicly that, statistically speaking, an addiction to ecstasy was no more dangerous for an individual than an addiction to horse-riding. This Saturday, we speak with David Nutt about why, when it comes to addictive substances, we should listen to the scientific data.

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