But actually, only a very few people know that the preset lifespan within human genes is actually around thirty years.
The truly optimal reproductive period for humans is between fifteen and thirty years old.
After thirty, most men gradually find themselves unable to reproduce as effectively.
This marks the genetic end-stage of life. In other words, humans, once past thirty, essentially enter old age.
Additionally, the lifespan of many human organs is only about thirty years.
Take the thymus for example.
After the age of thirty, the thymus begins to shrink until it completely degenerates. The human tooth replacement period only lasts until around fifteen, and the final set of permanent teeth, according to the natural rule, would generally be worn down by the age of thirty, rendering them unusable to tear apart prey for sustenance, leading to starvation.
Yet the average human lifespan still exceeds seventy years, even surpassing a hundred for some individuals.
