Conversation

The myth that the immune system is like a muscle that needs to be used to stay in shape is as popular as ever, while the complete opposite is true: there is no material benefit to any amount of viral infections, and the immune system stays healthier for longer the less it is engaged

Playing in the dirt as kids was for exposure to probiotics, not viruses

https://blog.open-source-eschaton.net/let-them-eat-plague

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