Without S. Boulardii, I am a neurotic mess who can't digest anything at all nor think straight after eating anything, so I'm inclined to believe this hypothesis. I am also intrigued about what this means for criminality and how the line between illness and evil is likely to shift given the role of microorganisms in behavioral dysfunction; and more broadly, we don't like to admit it, but it seems that completely amora…
How did you find out?
S. Boulardii is fairly widely known as having a pretty broad range of positive effects, so trying it out was a no-brainer. I have tried many, many things over the years and have improved greatly.
On a related note, it is common to assume that confirmation bias or the placebo effect would distort my judgment, but it turns out I am objective to a fault, as any objectively measurable intervention that I thought worked was later tested experimentally and confirmed my results.
There is actually nothing wrong with taking a guerrilla approach to health if doctors can't help you, as long as you don't fall for the "alternative for alternative's sake" fallacy, and are willing to bear the costs of iterating through the most promising interventions and not being disappointed when most of them fail.