You're changing the subject now. The article wasn't about measuring health in general, it was about weight control. And the line of discussion that we're on is a good measure of weight. A good measure of weight is different from a good measure of health. I'm not interested in discussing the latter.
Also, you seem to have missed the point of me mentioning measuring hair, which wasn't to say it was a good idea, but to say how you could do it if you wanted to. You're getting hung up on why anyone would want to do that, which misses the point.
Also, you seem to have missed the point of me mentioning measuring hair, which wasn't to say it was a good idea, but to say how you could do it if you wanted to. You're getting hung up on why anyone would want to do that, which misses the point.