Do Positive Affirmations Actually Work? What I Found After Digging into the Research

For years, I was deeply sceptical of positive affirmations. Standing in front of a mirror repeating “I am confident, I am worthy, I am enough” felt performative at best — and honestly, a little embarrassing. When I was going through the worst of my anxiety in my mid-twenties, someone suggested I try them, and for a while they actually made things worse. So the question “do positive affirmations work” is one I’ve sat with for a long time — not just out of academic curiosity, but because I genuinely wanted to know. What I found when I finally dug into the research was far more interesting and nuanced than anything you’d see on a pastel-coloured Instagram graphic.

Why Positive Affirmations Didn’t Work for Me at First

When I had my first panic attack at 23, I had no idea what was happening. It took almost two years to understand what I was dealing with — two years of avoidance, catastrophic thinking, and a lot of well-meaning but unhelpful advice. The suggestion to “just tell yourself you’re fine” landed somewhere between useless and infuriating. And as it turns out, there’s research to back up why that was the case.

A study by Joanne Wood and colleagues at the University of Waterloo found something counterintuitive: for people with low self-esteem, repeating positive self-statements like “I am a lovable person” actually made them feel worse. When there’s a large gap between what you’re saying and what you genuinely believe about yourself, your brain notices the contradiction — and doubles down on the negative belief. The affirmation creates psychological dissonance rather than comfort. I remember feeling exactly that. Saying “I am calm” during a panic attack felt like lying to myself, and the recoil was instant.

This doesn’t mean affirmations are useless — it means the way they’re typically presented is too simplistic.

What the Research Actually Says

Here’s where it gets genuinely interesting. Research on self-affirmation theory — which is different from the pop-psychology version — suggests that reflecting on your core values and what matters most to you can have real, measurable effects on wellbeing, stress responses, and even physical health behaviours. This work, largely built on the research of Claude Steele and later Geoffrey Cohen, isn’t about repeating feel-good phrases. It’s about reconnecting with who you are at a deeper level.

Studies have found that self-affirmation exercises — like writing about a value you hold dear — can reduce cortisol responses to stress, improve problem-solving under pressure, and even make people more open to health-related information they’d otherwise resist. That’s a very different thing from chanting “I am successful” at your reflection.

There’s also a body of research on positive self-talk in performance psychology. Athletes, surgeons, and people facing difficult challenges often use structured self-talk — not to pretend everything is fine, but to direct attention and behaviour. The key distinction researchers make is between self-talk that is instructional (“focus on your breathing, take one step at a time”) versus motivational (“I can do this”) — and both have been shown to be helpful in the right contexts.

When Affirmations Need Structure: The CBT Framework That Actually Rewires Thought Patterns

The problem with affirmations isn’t usually the affirmations themselves — it’s that we’re asking them to do neurological work without scaffolding. Cognitive behavioural therapy gives us a tested framework for examining and genuinely shifting unhelpful thought patterns, which is what affirmations are *trying* to do, just with more rigour and less magical thinking.

What works

• Teaches you to identify the automatic thoughts underneath self-doubt before you ever try to replace them — so you’re not fighting shadows with positive statements.
• Provides concrete evidence-gathering exercises (behavioural experiments) that build genuine conviction in new thoughts rather than relying on repetition and hope.
• Written accessibly for self-directed work, which means you can move at your own pace without needing to commit to therapy right now — and the “For Dummies” framing removes the clinical jargon that makes CBT feel intimidating.

What doesn’t

• This is active work, not passive absorption — skimming it or reading it once won’t shift anything. You need to actually do the worksheets and sit with the discomfort of challenging your own thinking.
• If your negative thoughts are rooted in trauma or are intrusive and persistent (OCD-spectrum), CBT workbooks alone can sometimes amplify anxiety; this isn’t a replacement for professional support in those cases.

I’ve hesitated to recommend self-guided workbooks to clients with moderate-to-severe anxiety because the work can sometimes stir things up without a therapist present to metabolize it—but for someone genuinely curious about how their thinking works and willing to move slowly through the exercises, this one has the clinical depth to actually matter. Check out the Cognitive Behavioural Therapy Workbook For Dummies.

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