Metabolism is the rate at which the cells in your body break down the calories from food and turn them into energy for daily activities.  There are some factors that a person has no control over when it comes to metabolism, such as: genetics, sex and age.  However, there are also factors that we CAN control: body fat, muscle mass and energy level.  By controlling these factors we are able to slow down or speed up our metabolism!   This article will outline the BEST ways to speed up your metabolism. #1 Build and Maintain Muscle Mass You can do this in one of three ways: Combination Training (resistance and aerobic…