Wellness

Slow Breathing: A 5-Minute Tool to Calm Down

September 6, 2026 · 4 min read · Sleep & Recovery

Woman looking out at the sea, breathing calmly

When you’re stressed, your breathing tends to get fast and shallow. The reverse also seems to work: deliberately slowing your breath can help you feel calmer. It’s free, takes minutes, and you can do it anywhere.

What the research says

A 2018 systematic review by Andrea Zaccaro and colleagues looked at studies on slow breathing — generally fewer than 10 breaths per minute, often around 6 (Zaccaro et al., 2018). They found it was associated with:

increased heart-rate variability (a marker linked to the body’s “rest and digest” system);
changes in brain activity linked to relaxation and alertness;
reduced anxiety, arousal and anger in several studies.

The authors noted that the evidence base is still relatively small and varied in quality, so more research is needed. But slow breathing is low-risk, and many people find it helpful.

How slow is “slow”?

Under 10breaths per minute counts as slow

~6breaths per minute used in many studies

5 minis enough to try it

Zaccaro et al., 2018

Technique 1: 4–6 breathing (the everyday option)

Sit or lie comfortably.
Breathe in through your nose for 4 seconds.
Breathe out slowly for 6 seconds.
Continue for 5 minutes — that’s 6 breaths per minute.

The longer exhale is the key. It’s great before bed or after a stressful meeting.

Technique 2: Box breathing (for focus)

In for 4 seconds
Hold for 4
Out for 4
Hold for 4

Repeat for 3–5 minutes. That’s about 4 breaths per minute. Popular with people who need to stay calm and alert under pressure.

Technique 3: Physiological sigh (for quick relief)

Take a full breath in through your nose.
Take a second, short “top-up” breath in.
Exhale long and slow through your mouth.

Repeat 2–3 times. Useful when you need a quick reset.

Belly breathing: the foundation

All three techniques work better when you breathe low into your belly rather than high into your chest:

Place one hand on your chest and one on your belly.
Breathe in so the belly hand rises and the chest hand stays fairly still.
Exhale and feel the belly fall.

Practise for a minute or two until it feels natural.

When to use it

Situation	Technique
Before sleep	4–6 breathing, 5 minutes
Before a presentation	Box breathing, 2–3 minutes
After an argument or bad news	Physiological sigh, then 4–6
After training	4–6 breathing while lying down
Stuck in traffic	4–6 breathing (eyes open!)

Build a daily habit

Like any skill, slow breathing gets easier with practice. Link it to something you do every day:

“After I sit down at my desk after lunch, I’ll do 3 minutes of 4–6 breathing.”
“When I get into bed, I’ll do 5 minutes before I turn off the light.”

Use a timer or a breathing app with a visual guide until the rhythm feels natural.

A note of caution

If breathing exercises make you dizzy or light-headed, stop and breathe normally. If you have a respiratory or heart condition, are pregnant, or experience panic attacks, speak to a healthcare professional about what’s right for you. Don’t practise breath holds in water or while driving.

A 7-day practice plan

Day	Practice	Time
1	Belly breathing, lying down	2 min
2	4–6 breathing, seated	3 min
3	4–6 breathing before bed	5 min
4	Box breathing at your desk	3 min
5	Physiological sigh × 3, then 4–6 breathing	4 min
6	4–6 breathing on a walk (4 steps in, 6 out)	5 min
7	Your favourite technique, at your most stressful time of day	5 min

By the end of the week you’ll know which technique suits you, and you’ll have practised it enough to use it under pressure.

Pair it with other habits

Before sleep: add it to the end of your wind-down routine.
After training: five minutes lying down at the end of a session.
Before meals: three slow breaths before you eat, a simple mindful pause.
During the commute: practise 4–6 breathing on the train or bus.

FAQ

Nose or mouth? Breathing in through the nose is usually recommended; exhaling through the mouth or nose both work.

How long until I feel a difference? Many people feel calmer within a few minutes. Regular practice makes it easier to use when you really need it.

Can I do it while walking? Yes — try breathing in for four steps and out for six.

The bottom line

Slow breathing — especially with a long exhale — is a simple, free tool for calming down. Five minutes before bed is a great place to start.

Sources

Zaccaro A et al. (2018). How breath-control can change your life: a systematic review on psycho-physiological correlates of slow breathing. Frontiers in Human Neuroscience. doi:10.3389/fnhum.2018.00353

This article is general education for healthy adults, not medical advice. Check with a qualified professional before starting a new exercise or nutrition plan, especially if you have a medical condition. Full disclaimer.