When people have 20 percent (or more) extra body fat for their age, height, sex, and bone structure. Fat works against the action of insulin. Extra body fat is thought to be a risk factor for diabetes.

(Obese-obese mouse) A variety of mouse that tends to be fat, and diabetic. A model for research on NIDDM.

A doctor who sees and gives care to pregnant women and delivers babies.

See: Oral glucose tolerance test.

A doctor who sees and treats people with eye problems or diseases.

Eye disease. There are several disorders that can affect vision in people with diabetes; the most severe is diabetic retinopathy.

A person professionally trained to test the eyes and to detect and treat eye problems and some diseases by prescribing and adapting corrective lenses and other optical aids and by suggesting eye exercise programs.

A test to see if a person has diabetes.

See: Glucose tolerance test.

Pills or capsules that people take to lower the level of glucose in the blood. The pills work for some people with Type 2 diabetes if their pancreas still makes some insulin. They can help the body in several ways such as causing the cells in the pancreas to release more insulin.

Diabetes in the person who shows clear signs of the disease such as a great thirst and the need to urinate often.