Type 1 diabetes is a disorder in which the body's immune system damages the pancreas so it can no longer produce sufficient insulin.

This leads to high blood glucose concentrations. 

Young people, such as children and teenagers. 

Mainly insulin injections.

It is also important to maintain a good diet and to do regular exercise.

Type 2 diabetes is a disorder in which body cells no longer respond to the insulin produced by the pancreas.

This leads to high blood glucose concentrations. 

Generally older people with poor diets, who don't exercise regularly. 

A strict diet with limited carbohydrates and regular exercise.

Insulin and other medications are sometimes also required. 

Obesity is a risk factor for type 2 diabetes.