you can freeze dry it. You can put the food in an air tight bag.
Vegetables, fruits, whole grains, beans, and seeds.
This depends on person to person. My favorite is behaviorism. This is because it focuses on the role the environment plays in a person, I am a microbiologist and a biochemist so I often look at what happens on the inside and enjoy looking at the outside factors that influence a person.
Cancer I Believe...Just Based On What The Others Are