Genetics may determine who becomes a heavy smoker

The following is an excerpt.

Individuals who pick up smoking as teenagers have a much higher risk of becoming heavy smokers as adults.  And for some, the risk is even greater – depending on their genetics.

A team of researchers from the United States, the U.K. and New Zealand utilized previous research on genetics and smoking to develop a genetic risk profile for individuals who eventually become heavy smokers.

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The research revealed  individuals with a high-genetic risk for smoking were much more likely to become heavy smokers as adults, but only if they had tried cigarettes as teenagers.  Those who were determined to have low-genetic risk were much less likely to progress into heavy smoking, even if they had tried cigarettes when they were younger.

View the original article here: Genetics may determine who becomes a heavy smoker