Unpredictable stress during adolescence may help us deal with future challenges more efficiently suggests new research. In experiments the researchers found that rats exposed to frequent physical social and predatory stress during adolescence solved problems and foraged more efficiently under high-threat conditions in adulthood compared with rats that developed without stress. The results may provide insights into how humans respond to adolescent stress the researchers said. They turned to rats to investigate the effects of maltreatment during adolescence because it is unethical to manipulate stress in humans and rats have a short lifespan allowing them to study long-term effects more