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Glossary

Analytical rumination hypothesis

Defined in topic 31

The proposal that depression's symptoms package the mind for sustained thought about a hard social problem. It is one of three competing evolutionary accounts of low mood.

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Where this comes from

In the reference topic that owns this term

Reference topic 31, The Mind That Cannot Find Its Village, states the mismatch as a card: what the system evolved to expect, what it gets instead, and what happens in the gap.

Mismatch card

What it expects

Threats that are physical, local and resolvable; problems a small group can help solve; a world where scanning and moving pay.

What it gets

Unresolvable threats delivered continuously, thin social support, and settings that reward long stillness and narrow focus.

What happens in the gap

Alarms built to over-fire go off constantly and stop resetting, and trait variation that once paid in one environment is diagnosed as pathology in another.

The full card, and the topic behind it

What that chapter recommends

3 of the 5 graded recommendations in Reference topic 31, strongest evidence first. How the grades work.

  1. Take treatment seriously

    StrongEvidence grade: Strong. Multiple randomized controlled trials, or consistent large cohort studies with a well-understood mechanism.

    Across 522 randomized trials and 116,477 participants, all 21 antidepressants studied beat placebo for acute major depression, with a small-to-moderate average effect.

    Read it in full

  2. Add movement, as an adjunct

    ProbableEvidence grade: Probable. Good observational evidence with a plausible mechanism, or small or few trials.

    In a 2024 network meta-analysis, walking or jogging, yoga and strength training each produced moderate drops in depressive symptoms against active controls, with the last two the best tolerated.

    Read it in full

  3. For ADHD, treat and adjust the environment together, not one instead of the other

    ProbableEvidence grade: Probable. Good observational evidence with a plausible mechanism, or small or few trials.

    Registry data link medication to lower two-year mortality and to fewer criminal convictions.

    Read it in full

The argument behind this term, its studies and its notes are in Reference topic 31 of the reference library. The book gives the practical version. Get the book.