University of Nebraska researchers are preparing for a study which could help more smokers quit their habit. The study will examine whether smokers are more likely to change their behavior after getting information about their personal genetics, and whether they're predisposed to having a nicotine addiction. Researchers will follow 90 adults who smoke at least 10 cigarettes a day. Half will receive a personal genetic profile during the study. The others will get the information after the study is complete.