And because the beta cells are destroyed, they lose the ability to produce insulin. So they produce very little or no insulin. And that means that the glucose levels inside our blood will remain high, because if we have no insulin, none of the glucose are actually transported into our cells. Now, these individuals must inject regular doses of medical insulin, insulin that is produced in the lab. And what that basically does is it helps our body maintain a healthy and normal concentration of our glucose. Now, of course, the person has to be careful and not inject too much insulin, because if too much insulin is injected, then that can lead to hypoglycemia.