<em>Type 1 diabetes occurs when your immune system, the body's system for fighting infection, attacks and destroys the insulin-producing beta cells of the pancreas.</em>
<u>Type 1 diabetes</u> occurs when your immune system destroys insulin-producing beta cells, which is located in the pancreas. Scientists think type 1 diabetes is caused by genetic and environmental factors that might trigger the disease. Type 1 diabetes can occur in people at any age.
