The answer: Food + Activity
When you take in more calories than you expend, the excess gets stored as fat—3,500 calories in one pound. Eating just 100 extra calories a day—a bagel, a candy bar, a soda—translates to 36,500 calories of excess energy over the course of a year. Even if your body stores only half of that, the result is over five extra pounds of fat a year! You could try burning those excess calories through exercise alone. But in order to burn just one pound, you’d have to run 33.8 miles. Just for one pound! And nearly one-third of us have an extra thirty pounds of fat. To burn that much, you’d have to run 1,040 miles—the equivalent of forty marathons! Exercise is key to good health, so don’t stop sweating it out. Just make sure you are sticking to your meal planning and smaller portions, and avoiding junk food and mindless snacks at all costs!