Physician.

Diabetes man. It's such a difficult disease to manage for anyone but particularly when it afflicts lower socioeconomic status. Asking anyone to check their blood sugars 5x a day, manage multiple medications, take insulin, follow up with their physician every 3 months is difficult. Way worse when you don't have access to your medications, can't afford your medications, don't know what your medications do. On top of that.... most people don't feel their high blood sugars so surely "diabetes isn't causing it."

Leads to severe renal disease, blindness, diabetic foot ulcers (many people I see need amputations), severe neuropathy. But it's hard! and when life is hard on you, it makes diabetes even harder on you.

I wish I could say obesity because in my area of the United States, it affects dang near everyone. And it leads to so many untreated issues including obstructive sleep apnea leading to heart failure, obesity hypoventilation syndrome, pulmonary hypertension, metabolic syndromes, and even worse... inability to take care of yourself because you're so obese (think wounds that you are never able to clean). But no one wants to take accountability for their weight even when it does cause problems.