"In humans, adolescence, namely the period between the early teenage years and early twenties, is a time of heightened susceptibility to the effects of addictive drugs, but previous studies have struggled to explain why. Our studies support the idea that regulation of protein synthesis by eIF2 might be the underlying cause," says senior author Mauro Costa-Mattioli.

https://www.sciencedaily.com/releases/2016/03/160301103108.h...