body energy expenditure

Body energy expenditure refers to the total amount of energy your body uses to maintain vital functions and perform activities. It includes basal metabolic rate (the energy needed for essential functions like breathing and circulation), energy used during physical activity, and the energy for digestion (called the thermic effect of food). Factors such as age, weight, activity level, and muscle mass influence how many calories you burn daily. Essentially, your body continuously uses energy to keep you alive and active, with the total amount depending on your lifestyle and physiology.