But Delfino said the differences might be more subtle. But smoking may do different things for different people, depending on their individual traits. He said these differences might be particularly important in determining why some teen-agers become addicted to cigarettes. The team is continuing its research with adolescents. They try it because of peer pressure, but that isn't why some end up addicted in the long run and some don't.
Some individuals find they get something out of it.