You have to keep in mind that humans evolved to live as hunter gathers in the savanna of Africa. Most of the things that come after that we were not evolved for

You have to keep in mind that humans evolved to live as hunter gathers in the savanna of Africa. Most of the things that come after that we were not evolved for. For example humans were not evolved to sleep in beds in air conditioned houses, etc. So evolution is not necessarily the most important factor. Life is a very complicated chemical process.