Six tools to calm your nervous system

You know the feeling, your heart rate goes up, maybe your thoughts are racing, or your mind’s gone blank, you’re sweating and the pressure is building. Maybe it's right in the middle of a difficult conversation, or five minutes before you walk into a room full of people who are about to judge your work.

Most advice for this moment is useless. "Just relax" is not a strategy that does anything in that moment. "Think positive" doesn't touch a nervous system that's already in fight or flight, because by the time you're flooded, you're not thinking your way out of it. You're a body first and that body is sending you distress signals that you need to respond to, before your brain can function.

The tools below work because they go straight to the body. They're quick, they don't need any equipment, and you can do most of them without anyone else noticing. Tapping is probably the one you've heard of, here it is alongside five others worth having in your kit.

1. The physiological sigh

This is the fastest one on this list, and it has the most direct evidence behind it. Stanford researchers Melis Yilmaz Balban, David Spiegel and Andrew Huberman studied it in a 2023 trial and found that short sessions of it reduced stress and lifted mood more than other common breathing methods.

How to do it: Take two inhales through your nose, back to back. The first is a full breath, the second is a short top up. Then let out one long, slow exhale through your mouth. Repeat two or three times.

The second inhale re-opens tiny air sacs in your lungs that collapse when you're breathing shallowly under stress. The long exhale is what does the real work, it activates your vagus nerve and shifts you out of sympathetic (fight or flight) and into parasympathetic (rest and digest). Your heart rate slows and your body realises that the threat is perceived, rather than real. You can do this at your desk, in a lift, mid conversation without people noticing.

2. Tapping (EFT)

Emotional Freedom Technique, or tapping, involves using your fingertips to tap on a sequence of points on your face and body, usually while naming the feeling out loud. It looks a bit strange the first time you see it, and a lot of people write it off for that reason. But it's built on a real idea: the acupressure points it uses sit along pathways linked to the body's stress response, and the light tapping combined with naming the emotion seems to help the amygdala, your brain's alarm system, settle.

How to do it: Tap gently, about five to seven times each, on: the side of your hand, the top of your head, your eyebrow, the side of your eye, under your eye, under your nose, your chin, your collarbone, and under your arm. As you go, say what's true. "I'm really anxious about this meeting." You're not trying to talk yourself out of the feeling, you're naming it while calming your body at the same time.

Dawson Church and colleagues ran a randomised controlled trial in 2012 comparing an hour of EFT against an hour of talk therapy and a no-treatment control. The EFT group showed a significant drop in the stress hormone cortisol, alongside larger reductions in anxiety and depression scores than the other two groups. A 2022 review in the Journal of Nervous and Mental Disease pooled dozens of trials and concluded EFT meets the American Psychological Association's criteria for an evidence-based treatment for anxiety, depression and PTSD.

3. Cold water and the dive reflex

Splashing cold water on your face triggers something called the mammalian dive reflex. Your body assumes you've gone underwater and immediately slows your heart rate to conserve oxygen. It's one of the quickest ways to interrupt panic, which is why it's used in some clinical approaches to acute distress.

How to do it: Cold water on your face for 20 to 30 seconds, focusing on the area around your eyes and cheeks, does it. So does holding a cold can or bottle against your neck or the back of your hand.

Researchers first documented the reflex in humans in the 1960s, when studies found that submerging just the face, not the whole body, was enough to trigger it. A 2015 study by Lemaître and colleagues traced the mechanism to the trigeminal nerve, the same nerve that carries sensation from the face, which signals the vagus nerve to slow the heart down.

4. The butterfly hug

This one comes from EMDR therapy, where it's used as a grounding tool between sessions. It uses bilateral stimulation, alternating left right movement, which appears to help the brain process and settle strong emotion rather than staying stuck in it.

How to do it: Cross your arms over your chest, hands resting on the opposite shoulders. Alternate tapping one hand, then the other, slowly, like a heartbeat. Keep going for a minute or two, breathing normally. It's discreet enough to do sitting at a desk or in a waiting room.

Psychologist Lucina Artigas developed the technique in 1998 while working with children after Hurricane Pauline in Acapulco, when she needed a way to deliver bilateral stimulation to a group without physical contact. It's since become standard practice among EMDR clinicians for self-soothing and is documented in Jarero and Artigas's published protocols.

5. 5-4-3-2-1 grounding

When your mind is somewhere else entirely, spiralling into a memory or an imagined future, this technique pulls you back into your body and the room you're actually in. It works by giving your prefrontal cortex, the thinking part of your brain, a concrete task, which makes it harder for the alarm system to keep running the show.

How to do it: Name five things you can see, four you can hear, three you can touch, two you can smell, one you can taste. Go slowly. There's no need to rush through it.

6. Humming or gargling

The vagus nerve runs right past your vocal cords, so anything that vibrates your throat, humming, singing, gargling, even loudly saying "om", stimulates it directly. It's the same mechanism behind the long exhale in the physiological sigh, just delivered through sound instead of breath.

How to do it: Hum a low note for as long as one exhale lasts. Repeat several times. If you're somewhere private, gargling water for 30 seconds does the same job.

This builds on Stephen Porges's polyvagal theory, which describes how the vagus nerve links to the muscles of the throat and face. Studies on humming and chanting practices, including bhramari pranayama and Om chanting, have found measurable increases in heart rate variability, a standard marker of vagal tone, immediately after practice.

Why these work when willpower doesn't

None of these techniques ask you to think differently. That's the point. When you're dysregulated, the part of your brain responsible for reasoning and perspective has actually gone quiet, this is measurable, not just a figure of speech. These tools work with your physiology first (breath, movement, sensation, temperature) so your thinking brain has something to come back online to. Once it does, the conversation, the decision, the difficult moment, becomes something you can actually meet.

It's worth having two or three of these that you actually like and will remember to use, rather than all six sitting untested in a list. Try them out on an ordinary Tuesday, not just in the middle of a crisis, so your body already knows the shape of them when you need them.

The research

Balban, M.Y., Neri, E., Kogon, M.M., et al. (2023). Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Reports Medicine.

Church, D., Yount, G., & Brooks, A.J. (2012). The effect of emotional freedom techniques on stress biochemistry: a randomized controlled trial. Journal of Nervous and Mental Disease, 200(10), 891-6.

Church, D., Stapleton, P., Mollon, P., Feinstein, D., Yang, C., & Palmer-Hoffman, J. (2022). Is tapping on acupoints an active ingredient in emotional freedom techniques? A systematic review and meta-analysis. Journal of Nervous and Mental Disease.

Lemaître, F., Buchheit, M., Joulia, F., et al. (2015). Research on the trigeminally-mediated mammalian dive reflex in humans, building on earlier work by Olsen et al. (1962).

Jarero, I., & Artigas, L. (2021). The EMDR Therapy butterfly hug method for self-administered bilateral stimulation. Iberoamerican Journal of Psychotraumatology and Dissociation, 10(1).

Porges, S.W. (2017). The Pocket Guide to Polyvagal Theory: The Transformative Power of Feeling Safe. W.W. Norton & Co.

Inbaraj, G., Rao, R., Ram, A., et al. (2022). Immediate effects of Om chanting on heart rate variability measures. International Journal of Yoga, 15(1), 52-58.

Latha, R., & Lakshmi, S.S. (2022). A study on the immediate and training effects of Bhramari pranayama on heart rate variability in healthy adolescents. Biomedicine, 42(4), 784-788.

This article is for general information and isn't a substitute for professional medical or mental health advice. If anxiety or panic is a regular part of your life, it's worth talking to a doctor or therapist.