Enteric Neurotransmitters
The gut lining makes most of the body's serotonin and a large share of its dopamine, but these molecules act locally on digestion and immunity; they do not cross into the brain to set your mood directly.
An everyday example
Chronic stress wrecks digestion, and the discomfort then feeds back into irritability and pessimism — a loop that is real, but not a 'serotonin shortage in the brain'.
What it can cost you
Believing a supplement, meal or 'gut reset' will directly rewrite your judgment, and discounting the slower levers that actually work.
Warning signs
- I am unusually pessimistic and my stomach has been off all day.
- I am looking for a food or pill to fix a judgment problem.
One thing to do
Treat gut health as a floor for good judgment, not a lever: sleep, regular meals and lower stress remove the drag; nothing you eat makes a bad decision good.
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