fatvegan

The way most researchers measure obesity is by looking at someone's BMI. A doctor wouldn't because it's not very accurate, but researchers don't have time to do a whole lot of tests, so they use something that's simple and quick to measure. The problem with this is that if people suddenly start doing a lot of exercise their muscle bulk is is likely to increase. If there's an increase in average muscle bulk then the average BMI goes up. And if that goes up, then suddenly you have researchers telling you that there's an obesity epidemic. So you need to be careful about which researchers you listen to.