underwriters laboratories, or u.l., is the world's leading consumer safety product testing organizationce," a promise of quality and superior craftsmanship. >> i could work for three or four hours and then that would be enough for a whole day. you can't do a lot of things you want to do because of the back pain. i eventually just try to forget about the pain and move on with life. i was introduced to it about three years ago. i was amazed with the very first day i used it, it was day and night difference for me. i felt like i just woke up. it was very relaxing. felt like i was recharged, energetic, and ready to go back out and do whatever i was doing earlier that day. the more i use it, the more i enjoy it and the more it helps me. i wish i could take my teeter with me wherever i go. dr. tontz: a daily routine, which is what roger is recommending, is a very good way of getting your back in great shape. so that as we stay vertical for our lives, we don't start breaking down later on. i think he's really made a tremendous contribution for maintaining a good healthy back. >> in terms of re