Researchers say that quitters who indulge in snacks after swapping them for tobacco are 20 percent more likely to develop the condition than those who smoke, but the risk decreases after seven years. Past studies have found that people who stopped smoking had a risk of developing diabetes, but scientists hadn't been able to identify the reason as to why. The team, from the Harvard TH Chan School of Public Health, says their findings are the first to show a direct correlation (...)