Maybe that psychologically affects their blood sugar in some way, and this is actually possible. Maybe it makes them act healthier in certain ways. Maybe that makes them act unhealthier in certain ways because they're like, oh, I have a pill to control my diabetes, my blood sugar. I can go eat more sweets now and it'll control it. And so to avoid that, in order for just the very fact that someone says, hey, I think I'm taking a medicine, I might behave in a different way or it might even psychologically affect my body in a certain way, what we want to do is give both groups a pill. And we want to do it in a way that neither group knows which pill they're getting. So what we would do here is we would give this group a placebo, a placebo, and this group would actually get the medicine, the medicine.