i think the real reason they avoid the doctor, besides not wanting to hear the truth that they need to lose weight, is that they've accepted what they're doing to themselves. in the backs of their minds they know it's all bullshit and that they're killing themselves, but they'd rather enjoy unhealthy foods and la  1ffa  ziness and live a short life than a long one that takes effort to maintain. like that one guy who said he would play video games and eat junk food till he died. he's the only one being honest.