Teens Graduate from Cigarettes to Alcohol through Altered GABA Signaling

People who start smoking during their teenage years are more likely to be heavy drinkers later in life, and a new study in rats has now shown how exposure to nicotine during adolescence, but not in adulthood, alters GABA signalling in the brain’s reward pathways. The findings, by researchers at the University of Pennsylvania, could also have implications for teenagers who vape, with studies already showing that adolescents who use electronic cigarettes are more likely to progress to regula