It's basically working out, and it's resistive exercise that does it for you, which we knew back when I was going, but the problem was we had this machine that was kind of a first generation of the workout machine and it could do large reps but low load. So you're doing a lot of reps at low weight and that helped. But what helps, it turns out we didn't. We found this out kind of by happenstance, but it turns out that high load, low reps works much better. And so we got this new machine that you could really crank it up to eleven and the guys now that are working out on that thing are coming home with no muscle or bone loss at all.