While Frederick was studying medicine, he became very interested in diabetes. He wanted to find a way to stop people with diabetes from dying. He came up with an idea to stop the flow of nourishment to the pancreas. Banting began his experiment on a diabetic dog. His experiment of pancreatic extract worked. To test his theory even more, they began to use cattle pancreases. The results were still the same, and Macleod suggested to name the extract 'insulin.' The team wanted to begin testing on humans so they injected themselves with insulin. They were not harmed, just felt weak and dizzy. In 1922, a 14 year old boy with diabetes was the first to try the new insulin and it turned out a success. The use of insulin spread throughout Canada rapidly. Frederick was awarded the Nobel Prize in Physiology or Medicine. If Frederick hadn't been so interested in diabetes and created insulin, many people around the world would be dying from diabetes. He has saved many lives by his discovery.