The results agree with an earlier review led by Guydish of smoking addiction treatment programs in the U.S.. (sciencedaily.com)
Research suggests that the interbreeding is possibly behind some characteristics of modern - day humans, which include skin color, rate of metabolism and even risks for smoking addiction and depression. (techtimes.com)
For example, we can sequence the genome of a volunteer and examine his risk to develop smoking addiction. (unlv.edu)