I just used one of those scales for the first time that tells you your body fat percentage, how much muscle mass you have, what your metabolism is, and bone mass. how does it know all this from just your height and weight???
In: 8
It just runs a small electrical current through your body, which interacts with muscle and fat differently. It then measure the current that comes back, and calculates it against your weight. They give you a very rough number based on that calculation, that they came up with by averaging a bunvh of test subjects. Everyone has a different type of body, with differing bone density and other factors, which makes the calculation less than reliable.
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