For years researchers have looked for ways to understand why some people seem to become addicted to cigarette smoking with the first puff while others don't. Studies have focused on why certain individuals have an easier time breaking the bonds of smoking and how smoking cessation success rates could be improved. Researchers examined the influence of peers and the media on smoking and smokers. Many scientists have turned to the very essence of the individual in recent studies-the individual's genetic makeup. "Born to Smoke: Nicotine and Genetics" reveals the findings of some of the most up-to-date studies of the role genetics plays in smoking.