The "Longevity Code" of a Century-Old Couple: Love, Habits, Environment, and Serenity"Are there still people with six generations living together in the world?" seasonal eating for vegetariansvegetarian diet for pregnant womenWhen this news went viral online, the names of Peng Sichen and Liu Xiurong, a centenarian couple, quickly spread throughout China. They were officially recognized in 2021 as the "oldest couple in the world" by an authoritative institution...