11 Scientifically Proven Ways to Boost Metabolism

Every time we eat or drink, we can thank our metabolism for converting all those calories into energy. Our size, gender, and age all factor into our metabolic rate, but there are also ways to independently control its speed. And the faster our metabolism, the more calories we burn off, making that Krispy Kreme breakfast no longer such a big deal. (OK, the donut probably still isn't the best idea.) Here are 11 ways to keep that body burning: