We didn't need a study to prove exercising makes us crave dessert--or, really, food in general. After hitting the gym, we're hungry. And that makes sense: We just burned through a bunch of energy, and our body wants to replenish it by eating everything in a 10-mile radius.
But there is a way to avoid going HAM and raiding the fridge: A study from last year found people who enjoyed working out were less likely to overeat afterward than those who saw exercise as punishment. So it's all about your attitude when you head to the gym.