A drug that was originally developed to treat diabetes and severe overweight might also help people with nicotine dependence, concludes new research. Smoking is one of the greatest threats to public health. And 75% of smokers want to quit. So why don't they? The answer is: nicotine. It is one of the most addictive known substances. Unfortunately, there is no treatment for nicotine cravings. But new research might be able to change that. "In connection with a mouse study focusing on overweight, we discovered, more or less by accident, that a well-known drug, liraglutide, used to treat diabetes and overweight,...