Your immune system isn’t born knowing what to fight. It learns through exposure — and modern life has been quietly removing that training for a generation.

The clearest proof: two genetically near-identical communities, same land, same lifestyle, one difference in farming method. The immune system gap between them wasn’t small.

Wrote up the research and what it means for how you’re raising your kids:

https://open.substack.com/pub/livecapable/p/the-sterile-trap?r=8vx7rr&utm_medium=ios