I can't speak much for teachers because as a child my family moved about once every 2-4 years.  I barely remember what most of my teachers looked like before 6th grade, and since then I have not had any deathfat teachers.  Just a spectrum of "average build" thru "entry-level obesity". I have been tested/diagnosed with ADHD as an adult because it was something I had been struggling with since early childhood that my parents (read: my mom) would either ignore because they didn't have insurance/want to pay for stuff OR it would get thrown in my face as a threat ("Do you WANT me to take you to a doctor to be told there's something WRONG with you!?", "You know, your grandmother already thinks you need therapy, and you're not helping by acting like that.  Wouldn't you LIKE to keep going to [fancy private highschool]!?  Because it's not cheap and we certainly can't afford it!!", etc). Both of my parents have been obese my entire life.  My dad has a pronounced gut and is fat but very beta, although is not afraid of physical tasks or doing chores/maintenance around the house.  He definitely has undiagnosed ADHD because it probably wasn't a thing when he was a kid and (based on the above from my mother) feels no inclination to see a psychologist as I have done.  I think he's only that obese because it's comfortable and because of my mother's influence. My mother has never weighed under 300 lbs since I can remember, and was around 350 after my youngest sister was born (fun fact: she had a miscarriage about two years before then, wonder why- I am the only sibling that is old enough to remember it) and has been known to buy entire cakes and consume them herself in a day or two.  She rarely cooks anymore.  She is constantly drinking a fucking Starbeetus venti frappy-fupa (fruppa?) thing.  I think she let it get to her head when she was earning more than my Dad after their last move.  She cleans the shit outta the house they're in (they rent because they are both pretty bad with money) and micro-manages fucking everything, but gets her kicks outta her fucking cakes and ice cream and fast food "splurges" (bitch please, you do this several times a week).  I remember getting pissed once that she was putting so much pressure on me, in highschool, to get a college scholarship that I drew an angry comic about how much money she spends on those fucking frozen Pepperidge Farm cakes every month.  She is an addict and drags my father down with her. I'm so sorry.  My point is that, yes, when your parents are fucking fat lazy selfish assholes who refuse to bother helping their child with a legitimate health concern, you do tend to not care yourself if that's all you're exposed to, and you learn little-to-NO impulse control.