Generate alternative, benign explanations for the sensation

List all other things that could plausibly cause the sensation you're experiencing.

Why it works

The panic loop is sustained by a single dominant explanation (cardiac event, fainting, losing control) that captures all attention and drives all interpretation. Generating alternatives — "heart rate could also increase due to exercise, caffeine, anxiety itself, temperature" — expands the hypothesis set and reduces the felt certainty of the catastrophic interpretation, breaking the certainty-anxiety feedback loop.

How to do it

1. Take the sensation: "racing heart." List every non-catastrophic cause of a racing heart you can think of.
2. Rate how well each explanation fits the context of the episode.
3. Ask: given all these alternatives, how certain am I that the catastrophic interpretation is the right one?

Evidence

Alternative-explanation generation is a core CBT technique for reducing certainty in catastrophic beliefs; it is a component of Clark's own treatment manuals for panic, which have RCT support showing large effect sizes for panic disorder. (rct)

Multi-component CBT programs show very strong effects; the specific contribution of alternative-explanation generation versus other components is not isolated in available trials.

Sources

• Clark et al. (1994), brief cognitive therapy for panic disorder, Journal of Consulting and Clinical Psychology

Common mistake

Generating alternatives intellectually while still believing the catastrophic one — the exercise requires actually updating the certainty estimate, not just listing options.