Chocoholics, behold your dream study: Researchers at University of Michigan fed subjects Hershey Kisses in five different flavors, either saying “here is your next chocolate” or “here is your last chocolate” on the fifth and final Kiss—and then rated how enjoyable that piece of candy was. Fascinatingly, those who were told it was the last chocolate found it more enjoyable than those who didn’t know. It was also rated as the favorite candy in the bunch 64 percent of the time, no matter the flavor. This amazing effect is something researchers call “the positivity effect”—a behavioral phenomenon that seems to validate the old adage “save the best for last”!