Studies identify DNA regions linked to nicotine dependence

Americans are bombarded with antismoking messages, yet at least 65 million of us continue to light up. Genetic factors play an important role in this continuing addiction to cigarettes, suggest scientists at the School of Medicine. They show that certain genetic variations can influence smoking behaviors and contribute to a person’s risk for nicotine dependence.

Studies identify DNA regions linked to nicotine dependence

Americans are bombarded with antismoking messages, yet at least 65 million of us continue to light up. Genetic factors play an important role in this continuing addiction to cigarettes, suggest scientists at Washington University School of Medicine in St. Louis. They show that certain genetic variations can influence smoking behaviors and contribute to a person’s risk for nicotine dependence.