<span>Metabolism, depending on age and sex, determines, along with amount and effectiveness of exercise and the consumption of calories, the number of calories expended.</span>
The basal metabolic rate is the rate of energy expenditure per unit of time of a person. This means that the basal metabolic rate refers to the energy that you need to survive for a minute. Another way of understanding this is the number of calories that are required in order to keep your body functioning while you are at rest. This number, however, will change based on changes on physical activity.
