It worked best on the people who needed it least
A psychologist walks through the evidence on positive affirmations. The overall effect was small. The pattern underneath it is the interesting part.
You’ve seen them. “I am worthy.” “I choose happiness.” “I am exactly where I need to be.” They scroll past in pastel type, usually over a photograph of someone doing yoga on a clifftop, and the offer is always the same: say this to yourself enough times and you will feel better.
A piece by a psychologist writing in The Conversation, republished by PsyPost this Wednesday, takes the whole idea apart and looks at what the research actually shows. It’s careful work, and it doesn’t land where the internet does in either direction. Affirmations aren’t nonsense. They’re also not the thing they’re sold as.
The finding we can’t stop thinking about is a small one from a study back in 2009. People were asked to repeat “I am a lovable person.” For those who already had reasonably high self-esteem, mood went up. For those who didn’t — the people the phrase was presumably meant for — mood went down.
What the evidence says, plainly
The idea has a real academic history. Self-affirmation theory was proposed by the psychologist Claude Steele in the late 1980s, and the reasoning is sound enough: we all want to hold a story of ourselves as adequate and worthy, and painful events — a bad review at work, a break-up, a mistake in front of people — knock a hole in that story. The theory says that deliberately restating good things about yourself can patch the hole before it gets bigger.
Does it? Sometimes. A 2025 review pooled 67 studies of people writing or speaking affirmations and found a real, measurable effect on how participants saw themselves and connected with others. But the effect was small. Individual studies have found upsides in particular settings — protecting self-esteem while scrolling social media, or a fortnight of twice-daily written affirmations nudging self-esteem up in one 2025 trial. And several recent attempts to reproduce the older, headline results have not succeeded.
That’s the honest version: a modest effect, uneven across people, still being argued about. Which is a long way from “repeat this and be happy.”
The part that deserves more attention
The article is at its most useful when it names the ways this can go wrong, and one of them is a phrase we think about a great deal: toxic positivity.
The mechanism is quietly cruel. If the culture insists that feeling better is a matter of reframing your thoughts, then not managing it becomes your failure. You didn’t say it enough. You didn’t mean it enough. So on top of the hard thing you’re already carrying, you now carry a second, thinner layer of shame about not having fixed it — and shame is not a state that makes anyone more likely to reach out for help.
There’s a second risk that’s easy to miss. Positive self-talk assumes you’re safe. When something in your life genuinely isn’t right, an internal soundtrack insisting everything is fine can talk you out of the instinct that was trying to tell you otherwise. Reassurance and information are not the same thing.
What seems to help more
What the evidence points towards isn’t more positivity. It’s a different tone of voice.
The research on self-compassion points somewhere different: speaking to yourself during a hard moment roughly the way you’d speak to a friend having the same hard moment. (The same piece points to a second approach — putting a little distance between yourself and a thought, sometimes by narrating it in the third person — which is worth a read in the original.) Not “I’ve got this.” Closer to “this is hard,” or “of course this feels the way it does.” It’s less flattering and considerably more accurate, and accuracy turns out to be the load-bearing part.
Notice what that isn’t. It isn’t a slogan, and it isn’t an upgrade you install. It’s mostly a willingness to describe your own situation truthfully instead of talking over it.
Why this sits so close to home for us
We’ll be direct: this is the argument that shaped how Nagi speaks.
Nagi will never tell you that you’ve got this, or that everything happens for a reason, or that today is a fresh start. Not because cheerfulness is forbidden, but because a companion that only reflects the good bits isn’t much of a companion. Nagi’s job is to listen, to reflect back what you actually said, and to notice things gently over time. When a day is bad, Nagi is allowed to say that it sounds hard — and then stay there with you rather than rushing you somewhere brighter.
The four-tap check-in works the same way. Mood, sleep, energy. Four taps, no performance, nothing to keep up — no name, no email. There’s no box for the version of the day you’d post. Over a few weeks, that plain record starts to show you things a single evening never could: that Sundays are consistently heavier, that the flat stretch was three days rather than the fortnight it felt like. That’s not positivity. It’s just what happened, written down.
We’d rather build something honest than something soothing, which is also why the S8 — our wellbeing measure — is currently going through a formal validation study rather than simply being shipped with a confident number attached to it. It’s slower. We think it’s the right kind of slow.
The line worth keeping
The piece closes on something we’d happily put on a wall: very few thinking styles are always beneficial or always harmful, the key is to be flexible rather than rigid, and that mostly means regularly asking yourself whether a thought is actually helpful.
And if the answer is that some kindness would help, let it be the real kind. Not a slogan you have to convince yourself of. Just a sentence you’d actually believe if a friend said it to you.
If you want a private place to start noticing your own patterns, Nagi is on Google Play and the App Store — or in your browser at app.nagiandme.app. The first 15 messages are free. No name, no email. Just you, checking in.
— The Nagi team
Source: The complex science of positive affirmations, and why they occasionally backfire by Madeleine Fraser, PsyPost, 19 August 2026 — republished from The Conversation. The 2025 review of 67 studies referenced is published in American Psychologist.
Nagi & Me is a mental health companion app, not a medical device, and nothing here is medical advice. If you’re struggling, please reach out to a professional or someone you trust.