Just to clarify. Evolution is based on favorable traits being passed on because they have better chance of reproducing, while creature with bad traits die before they can have any offspring.
Human society today takes care of people with "weak bad genes" so they can still reproduce. The strong genes have no considerable advantage when it comes to reproducing. So the evolution of the human species have pretty much stopped. We might still take humanity future by "upgrading" the human body technologically but it is not really "evolution". For evolution to "work" we would have to stop taking care of the weak and sick, so for better or worse there is no biological human evolution atm.