Metabolism is the process by which the human body converts the calories in food and beverages into energy. It is actually a biochemical action that is necessary for life to exist and for a body to sustain itself. The energy that is used to regulate heart rate, circulate blood, breathe and secrete hormones is converted from calories that are combined with oxygen through the metabolic process. This energy is necessary to sustain the body at rest as well as during exercise.  A basal metabolic rate or BMR is the actual number of calories that a person’s body requires to function on a daily basis without additional exercise. This is the…