thanks to tai cheng, i feel more confident. i want to be the poster child for older age. [ laughs ] [ audience cheering ] >> welcome, cathy! good to see you. >> thank you. >> wow, you know, i kinda feel like, you know, we are kindred spirits, right? i'm an emergency-room doctor and you're a nurse, and you know, it must have struck you when you had your accident, "oh, my goodness, i'm one of those people that i've taken care of." >> absolutely. absolutely. and i took it very seriously. and i felt like i wanted to be pro-active so that i could live the best possible life. >> what was it about the tai-cheng program that appealed to you so much? >> it was explained so easily. i had seen t'ai chi before, and i thought, "i will never be able to do that," but dr. cheng explains everything step-by-step. it's a fantastic program. >> i know you're very active playing tennis. lateral movement, so important. you know, when you step out of the shower, when you get out of your car, that's a lateral movement. and if those hip stabilizers aren