Clean vs. Dirty

Pathogen-Saturated (High)	Pathogen-Free (Low)
· Immune system does more work when in critical stages of growth in the way of defending the body from pathogens.	· Immune system does less work when in critical stages of growth in the way of defending the body from pathogens.
· Theoretically allows immune system to ignore minor irritants.	· Theoretically causes hypersensitivity to minor irritants.
· Theoretically has more immunoregulation practice, low chance of the body attacking itself.	· Theoretically has less immunoregulation practice, body may attack itself due to lack of suppression.
· Lower rates of allergy and autoimmune diseases, caused by desensitised immune system.	· Higher rates of allergy and autoimmune diseases, caused by lack of immunoregulation.
· More healthy immune system.	· Less Healthy immune system.
· Higher chance of death due to non-autoimmune illnesses and injuries, due to more exposure to pathogens when young.	· Lower Chance of death due to non-autoimmune illnesses and allergies, due to lack of exposure to pathogens when young.