This may be a silly question, but how does the Index actually work? Does it actually measure anything other than your weight? Or does it simply measure your weight and then use calculations to estimate the others stats based on your weight?
This may be a silly question, but how does the Index actually work? Does it actually measure anything other than your weight? Or does it simply measure your weight and then use calculations to estimate the others stats based on your weight?
Thanks so much. That's really incredible.