Type 2 diabetes is preventable and its not that hard. Type two diabetes is caused by unhealthy eating and low exercise. Mostly found in adults. There are ways to prevent it like exercize and a healthy diet. When your blood sugar or blood glucose is higher than normal that is sualy when diabetes comes, because inflammation starts in your blood vessles. When you have diabetes your insulin function is damaged. Your body makes insulin, but your body does not respond the way it used to.