I am not a physician, but a mom of a type one
and the daughter of a
type 2. In a
type one diabetic commonly called Juvenile
diabetes( because it usually is diagnoses in children , but I know people that were in they 30's and 40's and were diagnosed) is when the body stop s producing insulin.
Type 2 diabetics your body still produces insulin, but cannot use it properly use the insulin without help of medication.