If you have arthritis, stretching all of your muscles will treat any pain you already have, and it will help ensure that you don't develop pain somewhere else, so do as much of a whole-body workout as you can. Emphasizing certain stretching exercises based on your specific needs is good common sense. For example, if you have tight hamstrings, but very flexible hip flexors and quadriceps, stretch your hip flexors and quadriceps less and your hamstrings more.
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.