Advancement? Like what? Either a diabetic changes his eating habits and starts to exercise daily (like telling a drug addict to just stop his habit), or he is finished.
And if you are frum, it is more difficult. Given there is a strong connection of frumkeit culture to food; it is especially tough for the frum diabetic to limit himself of foods which are harmful to him. Most times, either the food contains sugar or will turn into sugar after ingestion.
Most diabetics control the disease with diet, medication, and exercise. However, it’s not an exact science and at any time blood sugar levels can shoot dangerously high, or plummet seriously low.
Thankfully, most diabetics are already long into their marriages when the disease becomes full blown.