physiology

Q&A: I heard our metabolism does not work when we are doing exercise. Is this true?

Fit female listening to music

Metabolism essentially means “burning calories to give your body the energy it needs.” There are 3 ways your body burns calories:

1. Resting metabolic rate (RMR):  Your body needs to supply your organs with energy even while you do nothing, and that is RMR: the calories your body burns while at rest. It’s the energy you burn while sitting, sleeping, standing, etc.

2. Physical activity energy expenditure (PAEE): This is any energy burned while you are working out or doing any kind of activity. Whether you’re washing dishes, walking up the stairs, picking up a box, or lifting hundreds of pounds of weight, this is the PAEE. It’s all dependent on your activity during the day.

3. Thermic effect of food (TEF): When you eat, your body uses energy to digest food. It requires more energy than when you’re sitting with an empty stomach.

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