"Our Bodies Change Our Minds" — Amy Cuddy on Rebuilding Confidence Through the Way You Carry Yourself

It's Not Only That the Mind Moves the Body — the Body Moves the Mind

Social psychologist Amy Cuddy, in a talk replayed around the world, said: "Our bodies change our minds." We usually assume the mind moves the body — that we stand tall because we feel confident, or shrink because we feel anxious. But what Cuddy demonstrated was the reverse direction: the possibility that how we use the body reshapes the state of the mind.

The roots of this idea reach back more than a century. William James, the father of psychology, said, "We do not weep because we are sad; we are sad because we weep," pointing to the possibility that bodily reactions generate emotion. We don't only laugh because we're happy; we become happy because we laugh. We don't only stand tall because we're confident; confidence rises because we stand tall. Understanding this two-way relationship is the first step to rebuilding confidence without being swallowed by nerves.

How a Shrinking Posture Steals Your Confidence

When people feel anxious or under pressure, they unconsciously make themselves small. Shoulders hunch, the back curls, the gaze drops, the face buries itself in a phone. This is a remnant of the animal defensive posture meant to protect us from predators.

The problem is that this shrunken posture creates a vicious cycle that intensifies the anxiety. A lowered gaze narrows your field of view and shallows your breathing. Shallow breathing raises your heart rate and keeps signaling the brain that "danger is near." Thinking then contracts further, and when the moment comes, the words won't come out. Just before an important moment, what many of us are doing is precisely this confidence-eroding posture: clutching our papers, peering into our phones, waiting small in a corner — and that very posture weakens the mind further.

How "Opening the Chest" Alone Changes Breathing and Thought

So what happens if you do the opposite and open the body? Straighten the spine, draw the shoulders back, open the chest — and first, your breathing deepens. The diaphragm moves more freely, allowing slow, deep breaths.

That deep breathing is the key to changing the state of the mind. Slow abdominal breathing shifts you toward the parasympathetic nervous system, calms the heart rate, and signals the brain that "it's safe here." Then room returns to contracted thinking, your field of view widens, and your real words come back. Of Cuddy's claims, the part concerning hormonal changes remains debated in later research, but the effect that adjusting posture raises a person's subjective sense of confidence has been confirmed in multiple studies. In other words, open the body, and at the very least, how you feel will reliably change.

Zen Master Hakuin's Wisdom: "Posture and Breath Settle the Mind"

The idea of settling the mind through the body is ancient in the East. The Edo-period Zen monk Hakuin recounted recovering from a breakdown of body and mind through a regimen of regulating breath and posture. What he taught was not to try to control a turbulent mind directly, but to straighten the posture and sink the breath into the lower abdomen, so that the mind grows quiet as a result.

In seated meditation, you first straighten the spine, tilt the pelvis upright, and repeat slow, long breaths. Rather than trying to "calm" the mind, you adjust the body and wait for the mind to settle naturally. This resonates strikingly with both Cuddy and William James. East and West, from separate roads, humanity arrived at the same wisdom: it is easier to settle the mind through the body than to tamper with the mind directly.

The Morning I Straightened My Back in the Hallway Before a Big Meeting

A personal aside. Once, before an important meeting, I was waiting in the seating area, hunched over in a chair and peering into my phone. Pretending to look at the screen, I remember my head spinning with "what if I can't speak well?"

Then I noticed how thoroughly I'd shrunk into myself, so on a whim I stood up, went to the empty end of a hallway, straightened my back, breathed in deeply, and exhaled slowly. That was all. And yet, just from opening my chest and steadying two or three breaths, I felt the heaviness that had pooled in my stomach loosen a little.

What stays with me isn't whether the meeting went well, but that sensation just before it. Chanting "calm down" in my head had been useless, yet merely changing my posture and breath let the mind catch up afterward. That morning, I felt I understood for the first time, as my own felt experience, the obvious truth that the body is the doorway to the mind.

Three Practices to Rebuild Confidence Before the Big Moment

Let's turn this wisdom into concrete steps you can use right before a nerve-wracking situation.

First, make an open posture for two minutes. Before a presentation, an interview, or an important conversation, stand somewhere out of sight with your spine straight and chest open. Put the phone down and lift your gaze slightly. Simply ending the shrinking posture physically changes your mental readiness.

Second, regulate a long-exhale breath. Inhale for four counts, then exhale slowly for six or more. Lengthening the exhale engages the parasympathetic system and settles an elevated heart rate. Repeating this a few times brings room back to your thinking.

Third, let movement release the tension. Rather than waiting frozen, walk a little, roll your shoulders, move your body lightly. Tension accumulates in the muscles, so moving loosens the stiffness and returns you to a natural state.

Confidence Isn't Something You "Feel, Then Act On"

We tend to think, "I'll act once confidence wells up" — once the nerves loosen, once my feelings settle. But what Cuddy and James teach is that the order is backwards.

If you wait to feel confident, that moment may never arrive. Instead, adjust the body first: stand like a confident person, breathe deeply, move with poise. Then the mind follows. "While you fake confidence, real confidence grows" — that reversal of order is exactly what Cuddy conveyed.

A life of being swallowed by nerves and staying shrunken, or a life of rebuilding the mind through posture and breath? The next time your chest tightens before an important moment, before you chant at yourself to calm down, first straighten your spine, open your chest, and exhale long. From the doorway of the body, confidence quietly rises.