The dangers of smoking are long-lasting

There s also more evidence out this week about the dangers of cigarettes. A study of 28,000 men who started college at Harvard University between 1916 and 1950 found that smoking in one s teenage years is associated with a 29 percent increased risk of death, even though they quit later. For those who kept up the habit, the risk of death was twice as high as that for nonsmokers, according to the study, published in the Journal of the American College of Cardiology.