Quote:
Originally Posted by marsupial
Fit people burn less calories resting because their bodies are more efficient?
I always thought increasing your muscle mass increases you metabolism as well. Muscle, I thought, required more calories to maintain than fat.
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Certainly, at rest a fit person's heart-rate can regularly be as much as half that of an unfit person. IIRC, the heart is the biggest at-rest calorie burner in the body.
Absolutely, many places claim muscle burns more calories than fat. It stands to reason that at rest, muscle burns few calories, and the difference is marginal.