Inflammation and the feeling that life is pointless

There is a particular flavour of hopelessness that arrives without a story attached. Nothing has happened. Nothing is wrong, exactly. The world has simply gone flat — effortful, grey, drained of point. People who feel it usually go looking for the psychological cause, because that is what we are trained to do with a feeling: find the thought behind it.

Sometimes there is no thought behind it. Sometimes there is a cytokine behind it.

The research on this is not exotic. When the immune system is chronically activated — by infection, by a gut wall it can no longer maintain, by a diet that keeps low-grade inflammation smouldering — it signals the brain, and the brain responds with a well-documented programme called sickness behaviour: withdraw, conserve, lose interest, stop seeking. In an acute illness this is wisdom; it puts you to bed. Run continuously, it is indistinguishable from mild depression. The pointlessness is not a conclusion you reached. It is a setting.

This is where the gut stops being a metaphor. The gut is the largest surface where your inside meets the world, it houses the bulk of the immune system, and it manufactures much of what the brain runs on. A gut kept in chronic distress does not just digest badly. It reports, around the clock, that something is wrong — and the psyche, hearing that report, goes looking for something to pin it on. It always finds something. Your job, your marriage, your character.

Now the loop is closed: the biology generates the mood, the mood generates the story, and the story generates the vigilance that keeps the biology inflamed.

You cannot think your way out of a loop like this, and you cannot eat your way out of it either — because the story, once installed, is doing its own inflammatory work. Both halves, at once. That is the whole argument of this practice, and nowhere is it more literal than here.