Researchers have identified genetic risk factors that may accelerate a teen's progression to becoming a lifelong heavy smoker. The team of scientists from the U.S., the U.K. and New Zealand examined earlier studies by other research teams to develop a genetic risk profile for heavy smoking. Then they looked at their own long-term study of 1,000 New Zealanders from birth to age 38 to identify whether individuals at high genetic risk got hooked on cigarettes more quickly as teens and whether, as adults, they had a harder time quitting. Read more here.
Study mentioned: Belsky DW, et al. Polygenic Risk and the Developmental Progression to Heavy, Persistent Smoking and Nicotine Dependence: Evidence From a 4-Decade Longitudinal Study. JAMA Psychiatry. 2013 Mar 27:1-9. [Epub ahead of print] PMID: 23536134
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