Why Cigarettes Bring Pleasure: Because of a Gene Variant


University of Michigan scientists may help explain why for some smokers the first cigarette brings them waves of pleasures while for other people it brings on nausea and coughing. Besides factors such as social pressure or environmental conditions, someone’s decision to carry on smoking can be determined by a gene, called CHRNA5, which has already been highlighted by other studies into nicotine addiction. More…