This topic is also interesting to me and I’ve thankfully had some opportunity to observe friends and family in a way that verifies a lot of the claims.

Here are my thoughts on why it’s not in the zeitgeist to the level you’d expect:

1) A lot of people have normalized to inflammation and just assume that’s how their brains function

2) In addition to the “obvious” things like diet and exercise, there’s a significant impact through environment: lack of clean fresh air, mold, detergents, building material (and/or furniture) off-gassing, dust and dander especially in the sleeping space, and so-on. In cases like this people “try eating properly”, don’t see the kind of benefits that people talk about, and write off the whole thing as a not working “for them” before going back to their original diet.

3) We rarely talk socially about symptoms like brain fog, memory lapses, mild pain, anxiousness, speediness, etc as anything related to diet or environmental exposure. Previous generations seem to have mental and emotional wellbeing the same attention as they gave to the supernatural, and we seem to have to continually shake off mindsets like “if I can’t measure it it doesn’t exist”