Do affirmations work? Values, self-love and what skeptics say
October 6, 2026 · 19 min read
Amy Cuddy says to affirm your values and not your greatness, neuroscientist Emily McDonald explains what affirmations do in the brain, Rana el Kaliouby credits journaling and affirmations with getting her past self-doubt, Mel Robbins scripts sentences for bedtime and morning, and Bruce Lipton argues that positive thinking alone fails against subconscious programs. Set together they show which kinds of self-statement have support and why repeating flattering lines often changes nothing.
The rules, numbers and steps worth keeping in front of you.
- Affirmations help when you can believe them and harm when you cannot.
- Cuddy: saying you are great while doubting it erodes self-trust.
- Cuddy's exercise: list your top three values, rank them, write why the first matters and when you lived it.
- Cuddy: students who affirmed values did better on midterms and were less anxious.
- Cuddy: before a performance, tell yourself you are excited.
- McDonald: repetition strengthens the pathway; an objecting inner voice works against you.
- McDonald: say affirmations while moving or playing to lower resistance.
- McDonald: act on your words, or your brain stops trusting you.
- Robbins, from Crum: admit how you feel first, then choose a helpful mindset.
- Crum: believing it is manageable beats believing you will simply be fine.
- Lipton: phrase statements in the present tense and repeat them, especially while falling asleep.
- Doty: write it down, read it aloud, picture it, and repeat.
- El Kaliouby: check your inner critic's claims against the facts in a journal.
- Mindset does not replace medical treatment; see a therapist or physician if self-attack persists.
This is the short form. The full insight has every expert's reasoning, their own words and the sources.