There have been reports of YouTubers I watch getting sick after eating food in third world countries. However, these countries are also home to a large number of people who do not get sick from eating the same food. I think this suggests that the locals may have developed stronger immune systems. What do you think?
they’re exposed to more bacteria growing up - it stresses their immune systems, promoting immunity. there was a study done years ago comparing the immune systems of children raised on farms (around livestock) and children raised in the city, and there was a distinct difference between the two.