Physiological sigh – the fastest way down
Two short breaths in through the nose, one long breath out through the mouth. Your body does this by itself when it calms down – here you do it on purpose, with a circle that sets the pace.
How it works
- 1Sit upright, shoulders loose.
- 2Breathe in through your nose until your lungs are almost full (2 seconds).
- 3Add a second, short inhale on top (1 second) – the “double” part.
- 4Breathe out slowly and fully through your mouth (6 seconds).
- 5Repeat for one to two minutes. Then tap the mood field once.
Why it works this way
The second inhale reopens air sacs that collapse during shallow stress breathing; the long exhale slows the heart through the vagus nerve. What matters is the ratio: breathe out clearly longer than you breathe in.
What research says
In a Stanford study (Balban et al., Cell Reports Medicine 2023) participants breathed like this for five minutes a day for a month. Their mood improved more than in the mindfulness meditation group, and their resting breathing rate dropped. The study is small – but the exercise costs two minutes and has no side effects.
When it helps
Before an exam, after bad news, when your heart suddenly races while studying. For a longer wind-down try resonance breathing; for exam anxiety, read the guide.
Sources: Balban et al., Cell Reports Medicine 2023
Frequently asked questions
How many in a row?
One to three breaths already make a noticeable difference. The study used five minutes in a row – the exercise here runs for two minutes and can be extended.
I feel dizzy – is that normal?
Light tingling can happen if you breathe too forcefully. Breathe more gently and pause. With a respiratory condition, check with a doctor first.
Do I need an account?
No. The exercise runs in your browser; anything you enter stays on your device.
More for “Calm down”
- Box breathing (4-4-4-4)Guided box breathing: 4 seconds in, 4 hold, 4 out, 4 hold. With a pacer and sound, 3 minutes, free in your browser – before talks and exams.
- 4-7-8 breathing for sleep4 seconds in, 7 hold, 8 out: the 4-7-8 method guided with a breathing pacer. 2 minutes, free in your browser – and what is known about it.
- Resonance breathing (coherent breathing)Coherent breathing, 5.5 seconds in and out – the pace at which your heartbeat swings along most strongly. Guided, 5 minutes, free in your browser.
Exercises are no substitute for help if you've been feeling bad for a while. Talk to your university's counselling service. In a crisis: call your local emergency number or a crisis line in your country.