Nope. Been debunked for both infections and allergens.
https://publichealth.jhu.edu/2022/is-the-hygiene-hypothesis-true
Nope. Been debunked for both infections and allergens.
https://publichealth.jhu.edu/2022/is-the-hygiene-hypothesis-true
The Hygiene Hypothesis has been under debate for quite a few years, or rather decades, and it is time to scrap it; the immune system doesn’t work like that. We don’t need repeated infections to stay health and have a functioning immune defense.