You Don't Have to Talk Yourself Into It - Why Affirmations Often Fail

In experiments by Joanne Wood and colleagues, people with high self-esteem benefited a little, while for people with low self-esteem momentary mood was in part worse than in the comparison group. The samples were modest, and only short-term mood was measured. If a friendly sentence makes you feel good, you don't have to stop.

The procedure is well studied and shows small, context-dependent effects, above all on how people take in unwelcome information. A large replication in schools found no effect, and the exercise is not established as a treatment in its own right.

Reviews cite roughly one and a half additional responses on a twelve-item scale, often less. A special trance as a door to the unconscious is not among the established building blocks of hypnosis research. The field largely agrees that expectation, focused attention, imagination and individual differences play a major role.

That this mechanism explains the effect is a plausible link between existing findings, not a confirmed model. Separately, autogenic training and self-hypnosis have evidence of clinical effectiveness, with all their methodological limitations.

That crediting a change to one's own regulation makes a lasting difference is a hypothesis of the essay, not an established finding.

The full essay with all sources is on the blog.