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Latest Edition of Psychiatry's 'Bible' Launched Amid Controversy

Authors say it defines disorders more concisely; critics say it will lead to over-diagnosis and unnecessary treatments

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Cigarettes Boost Plaque Buildup

Smoking contributes to heart disease by choking off the heart's supply of blood. Byproducts of smoking damage the linings of arteries and promote the buildup of clogging plaque. And these effects extend to the tiny blood vessels that supply blood to most of the heart muscle, according to the American Heart Association.