Reply #49: Stress on the immune system isn't necessarily a bad thing

[NickB79]

If anything, we are seeing problems arising from a LACK of stress in some children due to their growing up in an environment with too few environmental factors to challenge and strengthen their immune systems:

http://en.wikipedia.org/wiki/Hygiene_hypothesis

What you are describing ("a compromised immune system over-reacts to environmental factors and can even turn our own body against itself") is actually indicative of an UNDERSTRESSED immune system. This is all explained very well in the Wiki link I provided for you.