April 29, 2013 Psychologists have long known that children often model their behavior on the actions of parents or peers. But science has only recently begun to measure the influence of siblings. An older brother's or sister's behavior can be very contagious, it turns out — for good and for bad.
January 24, 2013 One new analysis finds female smokers are more than 26 times more likely to die of lung cancer than nonsmoking women — twice the rate calculated 30 years ago. New data also quantify the surprising payoffs of smoking cessation — especially under the age of 40.
January 15, 2013 Researchers found that graphic warning labels had a greater impact on smokers' intentions to quit than written warnings. Reactions to the visual warnings were similar across racial and income groups, which researchers say is important because of higher rates of tobacco-related disease among some minorities and the poor.