Which r the most common genetic diseases?

Depends on the population. White/european is cystic fibrosis (carrier rate is 1/25) south east asian or mediterranean is thalessemia sub saharan african/african american is sickle cell jews have tay saccs there's also hemophilia, hemachromatosis, bowel cancer (HNPCC, FAP), breast cancer (BRCA 1+2) and many more. Those are the common ones.

There are more exotic ones of course.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.