Study finds stronger nicotine dependency associated with higher risk of lung cancer

People who are highly addicted to nicotine -- those who smoke their first cigarette within five minutes after awakening -- are at higher risk of developing lung cancer than those who wait for an hour or more to smoke. Researchers at NCI found this simple measure of nicotine dependency improved lung cancer risk prediction beyond standard smoking measures, such as cigarettes per day, age, gender, history of chronic obstructive pulmonary disease and other lung cancer risk factors. Read more here.