Genetic variations put youth at higher risk for lifetime of tobacco addiction

Common genetic variations affecting nicotine receptors in the nervous system can significantly increase the chance that European Americans who begin smoking by age 17 will struggle with lifelong nicotine addiction, according to researchers at the University of Utah and their colleagues at University of Wisconsin-Madison. The study, published in the July 11, 2008 issue of PLoS Genetics, highlights the importance of public health efforts to reduce the number of youth who begin smoking.

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