Today, most people say "human biology is a thing of wonder" "Humans are built for longevity". And when a terrible ailment strikes, they explain it with "The meaning of life/God/The devil/We must die of something!"
In my mind, we could create a human systems biology profession where students are told during the first day at school "human biology is a mess wrought up by mindless evolution. Your job is to bring it to the exacting standards of perfection that we are able to apply to other things. In the measure we succeed, we will be able to bring dignity to billions of people."
We got some big early wins from low hanging fruit of infant mortality and poor sanitation. Everything else moves the needle a lot less, and it is a really long bug list. Our environment does ongoing damage of many different kinds and we wear out.