A great visual to help you understand the 9 prerequisites of health. Using an acronym can help you a lot to remember them all. Mine was Everyone (Education) Prefers (Peace) Salad (Shelter) Even (Equity) If (Income) Finding (Food) Stable Ecosystems and Sustainable Resources makes it hard to establish Social Justice for Salad. I seem to have lost the second page with the last few prerequisites. Comment if you find these helpful and I'll try to find it. Having an understanding and definition of all of them is all you'll need. Best of Luck!