When the Mind Hurts

The biases board shows a mind’s fast guesses going wrong in predictable directions. This lesson is the same guesses aimed inward: one message left unanswered becomes “everyone is tired of me”, one bad moment in a lift becomes a fear of every lift. Then it asks how doctors name that, and what treatment does about it. It is education, not advice: if any of this is close to home, talk to a doctor or a local crisis line.

Before you start. How Psychology Knows What It Knows gave you the habit this lesson needs most: a famous study is a claim until someone checks it, and an effect size says how much, not just whether. Cognitive Biases showed the mind’s fast system answering before the slow one checks, and What a Feeling Is For showed a feeling as the body’s alarm about what matters.

The idea in 30 seconds

The most famous study of psychiatric labelling, Rosenhan’s 1973 “pseudopatients”, is no longer trustworthy evidence: his own records and the one participant later found do not match what the paper said.
A diagnosis in the DSM is a checklist for naming a pattern, not an explanation of its cause, and two clinicians using it agree well on some diagnoses (autism, 0.69) and poorly on the commonest (depression about 0.3, anxiety about 0.2).
Avoidance keeps anxiety going: escaping a feared situation brings relief, the relief teaches more escaping, and the fear is never tested against reality.
The “low serotonin causes depression” story was never well supported, yet antidepressants beat placebo by a modest margin across 522 trials.
CBT treats a distressing automatic thought as a claim to test against evidence, and changes the behaviour that kept it untested; for anxiety it beats placebo by a margin that newer trials put at small rather than moderate.

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