Is there really anything on this planet better than pizza? The combo of melted cheese, customizable toppings, and variety of crust options is truly unbeatable. And for many of us — I'm looking at you, fellow millennial ladies — pizza is the key to our hearts. There's no denying its deliciousness, but did you know it's also a powerful motivational tool? If you're like me, then, yes. But now there's real evidence to prove what we've known all along.A study presented in Dan Ariely 's new book, Payoff: The Hidden Logic That Shapes Our Motivations, revealed that pizza can unlock a person's full potential, First We Feast reported (probably feeling very vindicated in the process). The experiment presented in the book took place at a semiconductor factory in Israel. There, the workers were separated into four groups, and each group was promised a different reward for their work. The rewards included $30 bonuses, "well done" text messages from the boss, and, you guessed it, pizza. There was also a control group, which wasn't promised any sort of incentive. Must have been a bummer to be placed in that group.