和訳をお願いします。
Recently, scientists have discovered several key genes connected to aging. The discovery suggests that people are built to get older, and weaker, and then to die. This seems rather strange and would appear to go against the theory of evolution. After all, if evolution is so efficient, why don't genes want us to have longer and longer lives? The simple fact is this: the genes that really matter are the ones that favor survival in early life. Once the organism has lived long enough to reproduce, it has served its purpose as far as evolution is concerned. Indeed the human life span has increased over the last hundred years or so, but this increase has nothing to do with our genes, rather with improvements in our lifestyle such as better diets and better health care.
So, from the genes' point fo view, it is vital that we live long enough to reproduce. What happens to us after that is of little concern to them. Thus, genes that make us strong and healthy during our reproductive years are always more valuable, more beneficial than those that may help us live longer.
