Scientists from Medical school at the University of Washington conducted an analysis of 24 studies and 29 thousand cases cigarette Smoking. It turned out a long smokers are often faced with a mutation in the gene CHRNA5, writes Fox News.
In carriers of mutations in lung cancer are diagnosed on average four years earlier than in smokers without mutations. The presence or absence of anomalies is associated with deep inhalation of smoke, the researchers said.
To prevent genetic changes, researchers are advised to abandon bad habits: use of nicotine substitutes, special psychological techniques, to start doing sports. This will reduce the risk of death from cancer and cardiovascular diseases.