BMR or Basal Metabolic Rate is essentially the number of calories burned when our body is in a state of rest. The term BMR is often used interchangeably with Resting Metabolic Rate (RMR), which refers to the amount of energy expended when the body is at complete rest. Other synonyms for BMR include basal energy expenditure, resting energy expenditure, and basal metabolic energy. It is important to know your BMR to manage your weight effectively, especially when it comes to calorie intake. A lower BMR means fewer calories are burned and one might need to consume fewer calories to maintain their weight or lose weight. Knowing your BMR can help you tailor a nutrition plan in accordance with your fitness goals.