Drink plenty of water and get plenty of aerobic exercise.
Must have proper number of RBCs with proper hemoglobin content... RBCs should also be in a normal shape...proper posture, good circulation, proper breathing are also needed!
The most important thing is not to smoke because cigarette fumes contain carbon-monoxide which tights up with red blood cells 200 times more aggressive than oxygen!
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.