Genetic Aspect of Smoking
American researchers claim: Genes can definitely influence whether someone may become a smoker.
1000 participants up to age 38 were involved in the study held by the research group from Duke University. Those with a high-risk genetic profile were more likely to smoke every day as teenagers. And their attempts to quit smoking were attended with great difficulties and stresses.
"Genetic risk accelerated the development of smoking behavior," said study leader Dr Daniel Belsky.
Alterations in the DNA were more common in the heaviest smokers. These modifications indicate the brain and body's responses to nicotine.