<-42, 5'10", 175lbs, probably in better shape than most on this board (gym, bike, and running today), and I'm pre-diabetic.
It runs in the family. My dad developed full Type 2 diabetes by his mid 40s (he's still alive in his mid 60s, but it's obviously affecting him). I'm in better shape than he was when he was diagnosed, but I'm sure it's waiting for me too. My paternal grandfather also had Type 2 diabetes, but his came later in life.
I also eat like crap. I'm better, but I still have a sweet tooth and love my cookies, cake, pie, and such. I'm not too bad with actual candy and I don't drink soda. I've been pretty good about reducing or eliminating white flour, white potatoes, most starches, etc, but I still have "benders" where I eat way too much of that crap.
I have to wonder if some of our national weight and diabetes problems aren't related to how food has changed over the last couple decades. I know we're more sedentary than we used to be, but I don't recall there being so many morbidly obese people or fat kids when I was a kid. It's almost as if the food itself is bad.
Chris