Addiction to stimulants may be undiagnosed ADD

I've thought so for awhile, also.

The definitions of addiction have changed over the years, according to Barry Everitt, Professor of Neuroscience at the University of Cambridge. He and his colleagues have done research into addiction, identifying the kind of person who is more likely than others to become addicted to substances, and they have looked at new ways to help people overcome their addictions.

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