November 13, 2012
Why Addiction Is Not a Brain Disease
Marc Lewis, PLoS Blogs
Addiction to substances (e.g., booze, drugs, cigarettes) and behaviors (e.g., eating, sex, gambling) is an enormous problem, seriously affecting something like 40% of individuals in the Western world. Attempts to define addiction in concrete scientific terms have been highly controversial and are becoming increasingly politicized. What IS addiction? We as scientists need to know what it is, if we are to have any hope of helping to alleviate it.