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Oh, is this going to be like "X changes your brain"? Where it turns out that doing literally anything changes your brain because it's designed to optimize against absolutely any environment.

Even the composition of your microbiome itself can alter your brain chemistry (actually, it's usually called the gut brain axis).

The study here used fecal transplant from lean to obese mice as well as a less invasive test; so it really does seems like a meaningful distinction.

backfeednack

mood, circadian rhythm, ancestry, region of the world, diet type, infection, sex, certain diseases, and probably more!

A regime of antibiotics can kill good microbes as well the bad.

Interesting considering the vast amount of AB we use ..

diet mostly I think. There was a good recent article about fiber too. https://www.nytimes.com/2018/01/01/science/food-fiber-microb...

thanks a lot