Why breathing on purpose works
Breathing is the one part of your automatic nervous system you can easily control. When you are tense, breathing becomes fast, shallow and high in the chest. When you are relaxed, it becomes slower and lower. Changing the breath on purpose works in reverse: slow, low breathing with a longer out-breath tells the body it is safe to settle.
The techniques on this page are simple, everyday tools. For the traditional yogic practices, such as Anulom Vilom, Bhramari and Kapalbhati, see our pranayama guide.
1. Belly (diaphragmatic) breathing
The foundation for every other technique. It retrains the diaphragm, the main breathing muscle, to do more of the work.
- Get comfortableLie on your back with knees bent, or sit upright. Place one hand on your chest and one on your belly.
- Breathe in through the noseLet the belly rise under your hand while the chest stays fairly still.
- Breathe out slowlyLet the belly fall. Make the out-breath a little longer than the in-breath.
- Continue for 5 minutesKeep the neck and shoulders soft.
2. Longer out-breath (4 in, 6 out)
The quickest way to calm down, and easy to do anywhere without anyone noticing.
- Breathe in through the nose for 4Gently, without forcing a big breath.
- Breathe out for 6Through the nose or softly through the mouth.
- Repeat 8 to 10 timesIf 6 feels long, try 3 in and 5 out. If it feels easy, try 4 in and 8 out.
3. Box breathing (4-4-4-4)
An even, steady rhythm that many people use to focus before an exam, a presentation or a match.
- Breathe in for 4
- Hold gently for 4No strain in the throat.
- Breathe out for 4
- Hold empty for 4Then repeat for 3 to 5 minutes.
If the holds make you feel tense or air-hungry, shorten them to 2 or drop them. People who feel anxious often do better with the longer out-breath instead.
4. Cyclic sighing
A double in-breath followed by a long, slow out-breath, like a natural sigh made deliberate.
- Breathe in through the noseFill the lungs most of the way.
- Take a second, short sip of airThrough the nose, on top of the first.
- Breathe out slowly through the mouthLong and complete.
- Repeat for up to 5 minutesOr just 2 or 3 sighs in a tense moment.
5. Pursed-lip breathing
Recommended by lung health organisations for people with asthma or COPD who get short of breath, because it slows breathing and keeps the airways open longer. It can also help anyone who gets breathless on stairs or during a brisk walk.
- Relax your neck and shouldersSitting is easiest while you learn.
- Breathe in through the nose for about 2Mouth closed.
- Purse your lips as if to blow out a candle
- Breathe out gently for about 4Twice as long as the in-breath.
Learn it when you are breathing comfortably, not in the middle of a breathless episode.
6. Nose breathing through the day
Less a technique than a habit. Breathing through the nose warms and filters the air and naturally slows the breath. Check in a few times a day: is your mouth open? Are you breathing high in the chest? Close the mouth, relax the jaw and let the breath drop lower. If you cannot breathe through your nose comfortably for long, see a doctor about a blocked nose or allergies.
Which technique to use when
| Situation | Try | Time |
|---|---|---|
| Stressful moment at work | Longer out-breath or 2 to 3 sighs | 1 minute |
| Anxious or restless | Longer out-breath; skip long holds | 3 to 5 minutes |
| Before an exam or presentation | Box breathing | 3 minutes |
| Can't fall asleep | Belly breathing, lying down | 5 to 10 minutes |
| Breathless on stairs or walking | Pursed-lip breathing | As needed |
| Daily calm habit | Cyclic sighing or Anulom Vilom | 5 minutes |
What the research shows
- A 2018 systematic review by Zaccaro and colleagues found that slow breathing, at around six breaths a minute or fewer, was linked with signs of a calmer nervous system and with people feeling more relaxed and less anxious.
- In a 2023 Stanford study in Cell Reports Medicine, people practised 5 minutes a day for a month. Cyclic sighing improved mood and slowed resting breathing more than an equal time of mindfulness meditation.
Most studies are small and short, so treat breathing as a helpful daily tool rather than a treatment.
Safety
- Breathe gently. Forcing very big or fast breaths can cause dizziness or tingling. If that happens, stop and breathe normally.
- Skip breath holds if you are pregnant, have uncontrolled high blood pressure or heart disease, or if holds make you anxious.
- Fast, forceful techniques such as Kapalbhati are not for everyone. See who should avoid Kapalbhati.
- Never practise breath holds in water or while driving.
- If you have asthma, COPD or a heart condition, ask your doctor which techniques suit you, and keep using your prescribed medicines.
Breathing techniques: common questions
What is the best breathing technique for stress?
A longer out-breath, such as in for 4 and out for 6, is the quickest and simplest. Cyclic sighing also works well.
What is the difference between breathing techniques and pranayama?
Pranayama is the traditional yogic system of breath control, with practices such as Anulom Vilom and Bhramari. The techniques here are simple everyday methods. Both overlap, and both help.
How long should I practise breathing exercises?
One to five minutes is enough to feel a change. A daily 5-minute practice builds the habit.
Is box breathing good for anxiety?
It helps many people focus. If the holds make you feel more anxious, choose the longer out-breath instead.
Which breathing exercise helps you sleep?
Slow belly breathing lying down, with a longer out-breath. See our yoga for better sleep guide.
Can breathing exercises help people with asthma?
Pursed-lip and belly breathing are recommended by lung health organisations to help with breathlessness. They do not replace inhalers or medical care.
Why do I feel dizzy during breathing exercises?
Usually from breathing too fast or too deeply. Slow down, make the breaths smaller and breathe normally until it passes.
Can children do breathing exercises?
Yes. Simple belly breathing and a longer out-breath suit children. Keep it short, playful and without breath holds.
Sources
- Zaccaro A. et al. (2018): How breath-control can change your life, a systematic review of slow breathing. Frontiers in Human Neuroscience
- Balban M.Y. et al. (2023): Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Reports Medicine
- American Lung Association: Breathing exercises
Last updated 24 October 2026. This guide is for general education and is not medical advice.