From what I have been reading and pondering, it seems like trying to replace the natural design of things (including ways of keeping healthy in a very complex world filled with dangers) with techniques driven by a very incomplete and often arrogant perception of how things work usually backfires. The biggest problem is that modern science tends to be myopic. There is just no intellectual or emotional tradition in the academic science to ponder things like, "What if my genius invention causes problems three decades or two generations later? And if so, should I shove it even though I love it so much?" Etc.

I have never even heard about measles being dangerous until I moved to America. when I was growing up, it was just something you were supposed to get as a kid, and you stayed home and didn't go to school, and it was not a big deal at all. Same with a million other childhood diseases. Now, the problem today is that everything is freaken poisoned, and people's immune systems are wack--but then instead of stopping to poison everything, the deep pockets continue poisoning everything and sell us products to make us "safer.:

Now, one may argue that eating dirt, on the other hand, can result is severe parasite infections. And again, a strong immune system can handle it just fine. A poisoned one may not handle it so well, Again, boils down to stopping to freaken poison everything! (which is not going to happen unless the entire thing collapses and we start from scratch).

All very complex!