Gina:

If American trash and hygiene makes you sick, I recommend not traveling to other countries! 

And America is far cleaner than it was 50 years ago, when beer and soda still had pull tabs, no one recycled anything, the Clean Air Act didn't exist, and littering didn't carry a meaningful fine.

Jen W:

While I believe the current fashionability of the influence of gut flora is somewhat overstated (especially since we know almost nothing about what constitutes "good" flora vs. "bad" flora, or whether the relationships are causal or just associative), I agree that overuse of antibiotics, C-sections, baby formula vs. breastfeeding, and lack of exposure to natural soil bacteria are not good for our health.

JS

Richard:

My impression: under great duress and only when they really, really want children.  But I've avoided having any of them in my life long enough to find that out!

JS

Skgr:

If everyone in the world agreed on everything, it would be a boring place!

JS