What does BMR mean, exactly? Basal metabolic rate (BMR) is the amount of calories your body burns while performing basic life-sustaining functions like breathing, growing hair, di ...

How to Calculate Your BMR and Total Daily Energy ... gaining two pounds of muscle will increase RMR by about 12 calories. Your basal metabolic rate is how many calories your body needs at rest ...

First, Spector takes a nap. This allows the researchers to calculate his basal metabolic rate — how many calories he burns while doing nothing (in most people, this is about one calorie per minute).