Learning Path · Body
An unsettled gut
Seven steps down the whole route a meal takes through you, then where each common kind of discomfort actually gets stuck.
For: Chronically uncomfortable gut, nothing serious on the tests, and no idea which explanation to believe
Survey the terrain first. From entrance to exit a meal passes several completely different environments — knowing what each does gives every later symptom somewhere to sit.
- Digestive SystemOpen in the atlas
The back half of that tube is inhabited. The microbiome isn't a good/bad switch, it's more like an ecology — start with what actually feeds it.
- Gut microbiome · your second genomeOpen in the atlas
Start with the most upstream problem: reflux isn't simply 'too much acid' — what's stuck is a valve and its timing.
- GERDOpen in the atlas
Further down, the most commonly diagnosed and most commonly dismissed one: IBS isn't 'overthinking' — it has measurable motility changes and visceral hypersensitivity.
- Irritable Bowel SyndromeOpen in the atlas
The same stretch of gut, a different presentation. Constipation's mechanism is more complex than 'eat more fibre' — in some cases more fibre makes it worse.
- ConstipationOpen in the atlas
Now look back at the shelf. Probiotics are the common answer to all of the above, but the evidence holds per strain and per indication — never for the whole category at once.
- ProbioticsOpen in the atlas
The last step explains why all of this flares under stress: there is a real two-way physical channel between gut and brain — not a metaphor.
- The Gut-Brain AxisOpen in the atlas