Vitamin C is one of the best ways to promote immune system health. It is found in a wide range of foods though Orange juice makes an easy, delicious choice and has other immunity boosting properties as well. Or I swear by Emergen-C packets.
Some of them taste awful but there is a few that are delicious. You can get them at pretty much any department or grocery store. Here's a pretty awesome page on improving your immune system: health.harvard.edu/flu-resource-center/h... They talk more about diet, but over all recommend you basically stay healthy ie no smoking, good sleep, avoiding stress, exercise, etc.If the body is healthy so are its systems, immune included, not to mention the other perks of taking care of your body.
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.