Genes influence how much people smoke and who gets lung cancer

Your DNA influences how much you smoke and whether you will develop lung cancer or chronic obstructive pulmonary disease. A study, led by researchers at Washington University School of Medicine, is the first large-scale effort to match genetics with smoking, lung cancer and COPD combined. The investigators studied 38,000 smokers and found that two groups of gene variants on chromosome 15 influence the risk for all three problems.