People with social anxiety disorder have a different gut microbiome - transplanting their microbiome to mice causes the mice to suffer from increased social fear
I think a lot of people don't realise how much of what makes "them" them is gut biome and your brain retrospectively assigning yourself agency for actions your body decided on (flinching from hot surfaces is one).
We just keep finding more ways that gut bacteria influence our diet and behaviour. And if you obey your gut flora and eat sugar instead of protein, you'll allow them to increase which expands their influence over you. Or that part of you, since where's the line?
Souls and people „don’t exist“. Because all that you and everyone thinks is you is just your brain taking inputs and making outputs by weighing all its available data.
Gut is just another data source which influences your brains actions.
These researchers are bastards! Why didn't they transplant the gut microbiome from the mouse to the human instead, to cure the test patient's social anxiety?
As a side note, I feel like a lot of people tend to erroneously conflate mostly normal social anxiety (e.g. feeling anxious when meeting new people) with SAD, which tends to be diagnosed when the anxiety is actually severe/crippling. Kind of like how PTSD or OCD are thrown around super casually these days.
Well everyone, even "normies", accepts that "hangry" is a thing. So it really shouldn't be surprising that our eating habits are so directly related to our mood and state of mind.