The classic Marshmallow Experiment of 1972 involved placing a marshmallow in front of a young child, with the promise of a second marshmallow if he or she could refrain from eating the squishy blob while a researcher stepped out of the room for 15 minutes. Follow-up studies over the next 40 years found that the children who were able to resist the temptation to eat the marshmallow grew up to be people with better social skills, higher test scores, and a lower incidence of substance abuse. They also turned out to