Metabolic age: what it is and how to lower it, from experts

It is arduous to determine metabolic age without first determining your basal metabolic rate (BMR). “Your basal metabolic rate is the amount of caloric energy, or energy derived from calories, needed to keep your body functioning properly, including your organs, digestion, muscles, and everything else working during your rest period,” explains functional medicine physician Heather Moday, M.D. “ If you spent all day lying in bed, that’s what your body would need or burn to function.” BMR is based on gender, height, weight, lean muscle mass, and a number of other factors. The higher your BMR, the better your metabolic age.