I don't know specifically about "immune system", but I don't think that there's much doubt that our general health has been negatively impacted by the food-abundant and exercise-deficient lifestyle led by a very large fraction of people in most developed countries and, increasingly, even in some developing countries. In that regard we are victims of our own technological success.So, what proof is there that "our immune system is in bad shape because of our lifestyle"? (And I know this was not your statement, but you're being Mr. Helper so I'll throw it back at you.
How is/was "our immune system" wrt "our life style", now, 50 years ago, 100 years ago?
How do you measure such a thing?
My beef: many try to turn what are substantial improvements in the human condition into something bad. Why?


