A、A kind of life style. B、Means of livelihood. C、An interesting class. D、A series of postures. A文章中提到，对于91岁的贝特斯来说，在她大半个人生中，瑜伽已经成

(23)Before her feet even touch the floor each morning, Bernice Bates is practicing yoga.
While still in bed, she does a series of seven or eight postures that gets her blood flowing. She puts her arms above her head for a stretch and a yawn, pulls her knees to her chest, "walks" the ceiling with her feet and stretches her shoulders and hands.     "By the time you’re through—it takes about eight minutes—you’re ready to walk, instead of hanging about," Bates said. "You can walk to the kitchen, to the bathroom. "
     (24)Yoga has been a way of life for Bates, 91, for more than half her life. Bates began practicing and teaching yoga 50 years ago with great passion. Guinness World Records recently awarded her the title of "Oldest Yoga Teacher".
    It’s an honor, the humble yogi feels, that isn’t hers alone. "I don’t have this reward by myself," she said. "I share it with all the students I’ve taught through the years. " Bates credits yoga with keeping her flexible, fit and healthy. " I think yoga is the best exercise" says Bates, who has always been active and still swims laps. "I’ve never had anything I had to go to the doctor for, except checkups," says Bates.(25)" Yoga gives you flexibility like you’ve never had before, and it makes you healthy because you’re working on the whole body, inside and out," she said. Bates, who has instructed children and adults, now leads a weekly one-hour class nine months a year at the Mainlands Retirement Community Center.
23. When does Bates practice yoga every day?
24. What does yoga mean to Bates?
25. Why does Bates say yoga makes people healthy?