> And that many common chronic disorders/illnesses (including ADHD, Autism, weight gain, etc) in our generation are actually attributable to a disfunctioning microbiome
All of those things have existed for ... ever
All of those things have existed for ... ever
And, for instance, ADHD probably isn't a disorder if you live a very simple life and do manual labor all day. No hyperactivity, no DMV appointments, and your life is decided for you. Remember, all the lines are drawn arbitrarily and something is labeled a disorder when it doesn't work with our (very strange) modern world.
Can't comment on autism though, and this is not directly about micro biome obviously.
Why?
I have ADHD bad but it virtually goes away while backpacking for reasons I described.
This is like reading that seatbelts cause head injuries.
But I do not believe they were as common prior to the 1960s as they are in the 2020s.
Sort of like how a big part of the increase in cancer deaths are people living long enough to die of cancer.
Get enough beatings, you learn to hide the thing that gets you beat.
I'm not at all convinced it was less common back then, just more hidden.