Basal Metabolic Rate (BMR) is the number of calories your body burns at complete rest to maintain basic functions — breathing, circulation, cell repair, and temperature regulation. It accounts for 60–70% of total daily energy expenditure for most people.
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Pro Tip
Muscle tissue burns roughly 6 kcal/lb per day at rest, compared to only 2 kcal/lb for fat tissue. Building muscle permanently raises your BMR.
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Did You Know?
Your brain alone consumes about 20% of your BMR despite being only 2% of your body weight.
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