Testing footage shows children desperately trying to resist temptation. Their dilemma? Ring the bell, and get one marshmallow now. Or, wait, and get two marshmallows later.

It’s called “the marshmallow test” and it can predict the future – sort of. Originally conducted more than 40 years ago, the studies continue today. Researchers consistently find that the group of kids who could force themselves to wait tend to have better lives and relationships. They also averaged 210 points higher on their SATs than the kids who could not hold off.

“If you can be focused on your goal and you can have self control to achieve that goal you can achieve a lot more in life,” said author Ellen Galinsky.