You would think the more you slept the fewer calories you would burn, you would gain weight.

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If you eat more calories than you burn, usually you will gain weight as the body stores the excess.

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And if you eat and drink more calories than you burn off, you'll gain weight.

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On a daily basis, it seems clear that the timing of meals plays a role in how much weight you gain.

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Face it: The holidays are upon us, and some things are certain: Besides getting at least one gift that you will re-gift or was re-gifted to you, there's a good chance you'll gain some weight.

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Suddenly that itty bitty weight gain has taken you from a slightly tighter fit in your favorite jeans to the point of considering, gasp, an elastic waistband.

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The study shows that if you increase drinking sugary beverages by one serving per day, it will lead you to gain an additional pound of body weight over four years.

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Not only are you healthier as a result, your comprehensive exercise program, which includes cardiovascular and weight-bearing exercise, is preventing further weight gain and allowing you to maintain muscle mass so your metabolism does not drop significantly as you get older.

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The average person requires about 0.8 grams of protein per kilogram of weight each day, but if you are trying to gain muscle, you may want to increase the protein in this ratio to closer to 1.2 grams each day.

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Even though you don't choose unhealthy foods, you are probably consuming too much healthy food, which is leading to weight gain.

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Second, depriving yourself of foods that you really love can lead to bingeing, which probably results in increased caloric intake and weight gain over the long run.

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If you don't lose weight slowly, it might be best to just accept your current weight and focus on prevention of weight gain, continuing your terrific fitness routine, and eating the healthiest diet you can, which includes a variety of fruits, vegetables, whole grains, lean protein and healthy fats for optimal health.

CNN: I'm exercising; why can't I lose weight?