What is the purpose of researching human genetics?

I believe the purpose of human genetics is for helping the human body live longer and create mutations or clones. Human genetics are the genetics that can make the the human body better.
Human genetics has gone a lot during the pass its grown a lot some people believe that the government is hiding stuff from us intell its the right time the government says no to that. Human genetics comes from about 200 to 300 years ago when it was first researched is what i would say but who knows not really any date. In human genetics there are mutations going on like the movie hills have eyes its based on a little true store were they are mutations on the people from to much raditation because the goverment was doing bomb test there and the people would leave so the government did it anyways and thats how most mutations happen. Cloning has come out to be a big sucess some might say. Human genetics is a big thing going on millions of dollar go into research for this stuff and some of its just wasted away. Hopefully it is good were doing all this research. Because i dont think its worth it at all.