In some cases it's legitimately genetic.  I'm a Canadian-American of mixed Asian (Indian, Nepali, Bhutanese) descent and pretty much my whole family has it. It's really common in my genetic pool. My grandpa died from it and he was one of the biggest shitlords It's ever been in my honor to know. I was recently diagnosed with pre-diabetes myself and though I'm not the fittest person around, I'm still at a healthy weight (5'7, 135 lbs, 22 BMI), I eat a healthy diet, and I excersie regularly (intramural soccer, lifting, and running). It might be a setback that I might not live to even my fifties, but in the meanwhile, I'll try absolutely everything I can to mitigate the effects. And if anything, it just makes me more angry at the hams. Get your shit together. No one is born a ham. Everyone starts off with a clean sheet, as a shitlord or shitlady. Eating yourself to an ungodly size and getting diabetes and heart disease is just flat out disrespect not only to yourself and society in general, but also to the people who have these diseases through no fault of their own.