Guide
Breathing exercises for anxiety: four that work, and when to use each
Not every breathing exercise suits every kind of anxiety. A simple guide to four evidence-informed techniques, and how to choose between them in the moment.
There are dozens of breathing techniques, and most lists present them as interchangeable. They aren't. Anxiety shows up differently from one moment to the next. Sometimes it is a racing heart, sometimes a tight chest, sometimes a thought you can't put down. Different techniques suit each.
The one rule behind all of them
Almost every calming breathing technique shares one feature: slow breathing with an unhurried exhale. Slow breathing is consistently associated with increased activity in the parasympathetic, "rest", side of the nervous system (Zaccaro et al., 2018). If you remember nothing else, remember: slower, and longer out.
1. Extended exhale: when your heart is racing
Breathe in for four, pause for two, out for six. The exhale is longer than the inhale, which leans on the heart's natural slowing during the out-breath. It is the most versatile technique here, and a good default when you are not sure what you feel. Learn extended exhale →
2. Physiological sigh: when your chest feels tight
Two breaths in through the nose, the second a short top-up, then a long, slow breath out. It mirrors the sighs your body makes on its own, and in one randomised study it improved mood more than other five-minute practices (Balban et al., 2023). Learn the physiological sigh →
3. Box breathing: when your thoughts are looping
In for four, hold for four, out for four, hold for four. The equal sides give attention a precise task, which helps when the mind keeps returning to the same worry. Learn box breathing →
4. Breath-free grounding: when breathing exercises feel like too much
For some people, focusing on the breath makes anxiety worse. Grounding moves attention to the senses instead: five things you see, four you feel, three you hear. Learn 5-4-3-2-1 grounding →
How to choose, quickly
| If it feels | Try |
|---|---|
| Racing | Extended exhale |
| Tense | Physiological sigh |
| Looping | Box breathing |
| Overwhelmed | Grounding |
| Not sure | Extended exhale |
This is exactly the question Calmalo asks when you press start, so you don't have to remember any of it.
A few minutes is enough
Most studies use sessions of about five minutes. You don't need to practise for long, and you don't need to do it perfectly. If a technique feels uncomfortable, make it gentler, or switch.