Basal metabolic rate (BMR) accounts for about 60% of the calories you burn each day. To calculate your BMR, you should use the Mifflin-St. Jeor equation, which is the most accurate. Knowing your BMR ...

Knowing your BMR can help you more accurately determine the amount of calories you need to eat a day to lose weight. Oscar Wong/Getty Images ...

Studies show that a calorie surplus between 5–20% can help you build muscle while engaging in a consistent strength-training ...

Vol. 77, No. 6, Sixth International Congress of Comparative Physiology and Biochemistry Symposium Papers: Evolution and Advantages of Endothermy (November/December 2004), pp. 929-941 (13 pages) ...