[gukov]

Also T1.

To greatly simplify, T2 is a matter of insulin resistance. The pancreas continues to produce insulin, it's just that the insulin produced becomes inefficient and an outside intervention such as medicine or exogenous insulin is needed. In terms of medicine, Metformin is one that's commonly prescribed. Again, to simplify, it basically makes the liver pump out less glucose into the bloodstream. It's actually considered a wonder drug (look up Metformin and longevity, makes you think...). Generally, after a certain period, if done right, the T2 person will no longer require the meds and can be considered cured.

I'm not sure if pancreas can overwork itself to death by producing too much insulin. If it's not damaged by the autoimmune system it should be able to recover.