The simplest way to go about things... I'm sure I'm not the first to have this realization, but for all the talks of BMI, glandular problems, HAES, etc. there's one constant trait that holds fast: the belly button. Stand up. Is your belly button a vertical feature? You're probably okay. The more vertical it goes without any extra effort, the more taut and firm your stomach probably is. Is your belly button stretched horizontal at all times? You're probably a lardass sack of shit. That is all.