 I'm 82, and I can do a lot of things. I can go, go, go, go 24 hours. In fact, I'm going out of the country for five weeks, but I'm happy with it. I think that's the balance of nation. I don't go anywhere without it. Well, I've been taking it for some time. We saw the ad, and we thought we would give it a try. And I noticed after the first month, we just felt better.