How does a smart scale determine your water percentage, amount of muscle weight and visceral fats by just standing in it?
In: Technology
You notice how they have metal plates to put your feet on? Thats so they can run a small electrical current from one to the other, passing through your body. They measure the resistance (impedance) and use that to determine how much body fat and water content you have, as both will change how the current flows through your body.
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