In fact, many elderly people in China pay special attention to health preservation. I think this has something to do with China's thoughts. The concept of health preservation is really deeply rooted in people's hearts. For a long time, China people just wanted to prolong life, and then some ancient emperors would learn from Taoist alchemists to prolong life. Now, in China's words, old people also want to live longer and healthier, so they will be very keen on health preservation.