The results of 'evolution' are not perfect in the way we understand 'perfect'. Evolution's 'goal' is not that human beings be super-healthy. As long as an organ

The results of 'evolution' are not perfect in the way we understand 'perfect'. Evolution's 'goal' is not that human beings be super-healthy. As long as an organism can stay alive long enough and healthy enough to reproduce effectively, the 'goal' is met. Obviously, human beings have been living long enough and healthy enough so that the world population has kept increasing rapidly for the recorded history of human societies.