Why don't we live more than 120 years?

Source Summary

The first example of human literature is the epic of Gilgamesh. This 4,500-year-old poem tells the adventures of the Sumerian hero Gilgamesh in his search for the plant of eternal youth that will ensure him immortality, the great concern of humans. Although medical advances in recent decades have allowed us to double life expectancy, we have not yet extended the maximum longevity of the species . We do not know anyone who has lived longer than Jeanne Calment, a French woman who died at 122 years old at the end of the 20th century. However, the search continues. What do genetic and evolutionary studies tell us?