If you're eating a balanced, healthy diet but not seeing any weight loss, experts from the Mayo Clinic say the problem may not be what you're eating but how much you're eating. They quizzed dieters about the food pyramid's average serving sizes and found many were misinformed.

For example, a serving of chicken is roughly the size and thickness of a deck of cards—not a whole skinless, boneless chicken breast. One serving of pasta is 1/2 cup cooked—not one full bowl. A serving of fruit juice is 3/4 cup, not a 12-ounce glass. A serving of bread is one slice, not two. As you can see, those extra calories from oversize portions add up fast!

Teach yourself to recognize a real portion by measuring everything out until you can eyeball a single serving accurately. You may be surprised to find that you were super-sizing your meals without even realizing it

When you finish a workout, you don't simply feel better, you feel better about yourself.