Your metabolism never sleeps — it’s always working to keep your energy levels up, even if you’re not doing anything at all!
But do you really know how BMR, activity level, and daily calorie needs all work together?
Take this super-fast quiz to find out how much you know about the basics of metabolism and how your body burns energy. You may be shocked by the results! If you want to determine how many calories you need to consume every day after taking this quiz, check out the Harris-Benedict calculator.