I Ask You to Give a Lecture on Health Preservation, and You Talk About the Tao of Immortality?

Another world has arrived, and all races have invaded. As one of the twelve forerunners of the human race, Wang Zhan witnessed the demise of the human race with his own eyes. Fortunately, he was reborn a year before the alien world came. In order to avoid making the same mistake again, Wang Zhan decided to teach the secrets of longevity in health lectures held by the company. From that day on, the whole world changed. PS: no system, passionate writing