to their families, up to 30 pounds. that obviously has helped them fit in the capsule. and since then, since they were discovered, they've been having an exercise routine handed down to them by a personal trainer uphill on the surface so the personal trainer -- thanks to medical devices that have been passed down into the mine -- is keeping a check how fat these men are. and he'll have them measured every day. he'll check their pulses, their heart rhythms. and on the basis of that will organize an exercise routine. one of the men, we're told, is jogging an hour a day up through about mile and a half of tunnels. some of the others are doing press-ups. they've also had elastic bands. these resistance bands so they can strengthen arm and leg muscles. the medics keeping a close eye on that so they will be in shape for the day. and then when they come up, of course, it's a small space, 21 inches across in that rescue capsule. but they are miners, so they're