Type 1 diabetes occurs when the pancreas fails to make enough insulin. Make sure he follows 3 things always.. DIABETIC DIET, regular EXERCISE, and most important of all.. daily INSULIN doses. Depending on the type of diabetes you have, either your body doesn’t make insulin, doesn’t make enough insulin, or doesn’t use insulin in the right way. Both the forms are equally bad and need good care and proper regular treatment. If not then both willlead to complications which might turn into life threatening problems at times.