ah, got it. One of my best friends is diabetic, I just usually confuse the types.
Yeah, sorry. Just been reminded that my quarterly endo appointment is coming up next week. Gets me moody.
Type 1 is primarily defined by reduced insulin generation (for example, in my case it was an auto-immune response that killed off the part of my pancreas that produces insulin). Usually this is dealt with by insulin injections.
Type 2 is primarily defined by resistance to insulin (similar to other drug/hormone resistances). It's usually got a genetic factor, though like I said, diet exacerbates it. This is usually dealt with through diet and exercise modifications, along with insulin-sensitivity raising drugs (like metaformin). Insulin injections can be added as well.
That's a rough summary of the two forms of diabetes mellitus. There's also gestational diabetes, which is (I believe) a form of type 2 that occurs during pregnancy. "LADA" is Latent Autoimmune Diabetes of Adults, which is what I was diagnosed with initially (since I was >18 when I was diagnosed), and is really just a way of saying "Damn, you got type 1 later in life than we'd expect".
There's also diabetes insipidus, which is related to the kidneys and is totally unrelated to the traditional 'diabetes'.
But that's enough about metabolic diseases in a thread about mental diseases.