Gut Microbiome & Mood
Gut bacteria influence inflammation, stress hormones and vagal signalling; in animals this changes anxiety-like behaviour, and in humans the evidence is suggestive but not yet causal for decisions.
An everyday example
Feeling foggy and short-tempered for days after a course of antibiotics or a week of travel food, and reading every proposal more harshly than usual.
What it can cost you
Over-crediting a 'microbiome' story for mood or focus, or being sold probiotics as a decision-quality upgrade.
Warning signs
- I have adopted a gut-health explanation for a pattern I have not measured.
- A product promises focus or better decisions through bacteria.
One thing to do
Stabilise the basics (fibre, sleep, regular meals) and log mood against them for two weeks before believing any gut-specific claim about yourself.
Is this happening to you right now?
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Not medical, legal or financial advice. How Decision IQ works
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