Diabetes type 1 and type 2 come from different causes:
In diabetes type 1, the pancreas does not make insulin, because the body’s immune system attacks the islet cells in the pancreas that make insulin.
In diabetes type 2, the pancreas makes less insulin than used to, and your body becomes resistant to insulin. This means your body has insulin, but stops being able to use it.
I’ve seen two types of addicts in the various 12-step programs I’ve attended. Type one addicts can not make recovery on their own, they are in the group for life. Other addicts come into a program, get a permanent rearrangement, and graduate from the program to do other things in life without the addiction coming back to kill them.