3 ms·
Little bit of bacteria helps build up your immune system for when you really need it :)
by capableweb 3y ago
Little bit of bacteria helps build up your immune system for when you really need it :)
- Sohcahtoa82 3y agoYou jest, but it's actually a legit hypothesis. https://en.wikipedia.org/wiki/Hygiene_hypothesis https://en.wikipedia.org/wiki/Hygiene_hypothesis