Although this world is too dangerous, causing many people to die early due to various reasons, and lifespans are often not as long as those on Earth, if one can live safely, the lifespans of the primitive people in this world are astonishingly long.
In this world, everyone always faces the test of life and death, including the most powerful and knowledgeable leader and Great Witch within a tribe. So, although everyone has a long lifespan, there are very few who truly live long, and most die prematurely.
When Yan Shuangshuang was carried into Yu's stone cave by Cao, Yu was processing herbs. The witch doctor's way of healing mainly relied on their own power, as the Heavenly God did not teach the primitives how to use herbs. All medicinal herbs used to treat illnesses were painstakingly researched by countless witch doctors, so their number and variety were limited.
