Last night, my sister-in-law’s husband asked me, “Why do you test so much?” I explained to him that since I inject insulin ( and I explained the importance of insulin ) before each meal, I have no way of knowing if my blood glucose level is going up, going down, or just hanging around. He still had a blank look, so I explained some more. “You have a healthy endocrine system that does what it is supposed to do. Mine. She broke. This finger prick, this test strip and meter, this shot of insulin - and my brain - they are my endocrine system.” Sigh! I know he still didn’t get it.