Fat scan shows up 'true' obesity
Scientists say they have developed a 3D scanner that can accurately determine if a person is truly obese.
Currently, doctors gauge fatness with a calculation of body mass index (BMI). But BMI is flawed - people with lots of muscle are considered overweight.
Instead of relying on weight and height measurements, as BMI does, the scan takes into account body shape and how much fat a person carries.
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