Overestimating Calories Burned
Exercise is a great complement to dieting. However, it is easy to overestimate the calories you have burned. Running for 30 minutes might burn 300 calories, but there are over 300 calories in one cup of eggnog. Do continue exercising, since it will help you keep on track, but don't assume you can eat everything in sight when you're at a holiday cocktail party. It's all about balance.