Health classes should be taught to students in all age groups throughout primary school and should be considered one of the regular classes just like math, English, or history. These classes should include teaching primary students personal hygiene, keeping a sanitary living environment, safe food handling, emergency care procedures, etc.
Personal hygiene and maintenance of body health would include proper hand washing without wasting water, soap, or paper towels (and how to keep hands clean) and rear wiping without wasting toilet paper, bathing, brushing teeth, flossing, and other personal body care. The importance of proper exercise, proper diets and safe food handling practices, rest, and risk avoidance should also be taught. Students should know everything about maintaining sanitary living conditions which would include keeping clean bathrooms, kitchens, etc., and maintaining sanitary food storage conditions.
Emergency care should be the next highest priority topic taught to primary school students. Included in this category would be things like emergency first aid treatments for common injuries and illnesses and their prevention.
Some of the highest priority lessons should teach students how to remain safe during emergencies, especially with respect to how to act and remain calm during civil emergencies, how to stay out of trouble in such situation, and how to be part of the solution rather than part of the problem.
Cooking classes should also be incorporated so that all students would know the basics of food preparation relating to all of the common foods. All students should probably know how to cook at least 10 dishes before they graduate from high school.