Breathing is the one part of your stress response you can control on purpose. A few minutes of slow, deliberate breathing won't solve what's stressing you, but research suggests it can calm your body enough to help you rest.
Written by Vita Globe Editorial Team | Reviewed against the AASM insomnia guideline, NIMH guidance and peer-reviewed research
Do breathing exercises help with stress and sleep?
The evidence is encouraging. In a randomized study, five minutes a day of 'cyclic sighing' (a double inhale followed by a long exhale) improved mood more than mindfulness meditation[1]. A systematic review linked slow breathing to greater relaxation and lower anxiety[2], and relaxation techniques are part of recommended insomnia treatment[4].
Caveat: Most breathing studies are small and short. Breathing exercises are a helpful tool, not a treatment for anxiety disorders or chronic insomnia[3].
Sources: Balban et al., 2023 · Zaccaro et al., 2018 · AASM guideline, 2021 · Verified 2026-09-27
IN THIS ARTICLE
Why does breathing affect stress?
When you're stressed, breathing tends to get faster and shallower. Slowing it down on purpose seems to send the opposite signal. A systematic review of slow-breathing studies found it was associated with changes linked to relaxation, such as increased heart rate variability, along with reports of more comfort and less anxiety[2].
The NIMH lists relaxation practices such as deep breathing among its tips for managing stress[3].
What is cyclic sighing?
Cyclic sighing is a simple pattern: breathe in through your nose, take a second short inhale to top up your lungs, then exhale slowly and fully through your mouth. Repeat for about five minutes.
In a randomized study from Stanford, participants practiced one of three breathing exercises or mindfulness meditation for five minutes a day for a month. Cyclic sighing, with its emphasis on long exhales, produced the greatest improvement in mood, and the breathing practices were linked to reduced physiological arousal[1].
Which breathing techniques are worth trying?
| Technique | How it works | Evidence |
|---|---|---|
| Cyclic sighing | Double inhale through nose, long slow exhale through mouth | Improved mood in a randomized study[1] |
| Slow breathing | About 5–6 breaths a minute, e.g., in for 4 seconds, out for 6 | Linked to relaxation and lower anxiety in a systematic review[2] |
| Box breathing | Inhale, hold, exhale, hold, about 4 seconds each | Tested in the same study as cyclic sighing, which improved mood more[1] |
If a technique makes you feel lightheaded or anxious, stop and breathe normally. Breath-holding isn't comfortable for everyone.
How do you use breathing before bed?
Try this in the last 10 minutes of your evening, after screens are off:
- Lie on your back or sit comfortably with the lights low.
- Do cyclic sighing for five minutes, focusing on long, slow exhales.
- Let your breathing return to normal, and let your thoughts drift.
To make it stick, attach it to something you already do, like brushing your teeth or turning off the bedside lamp. Consistency matters more than technique: in the Stanford study, participants practiced daily for a month[1]. You can also use it during the day, before a hard conversation or after a stressful meeting, so the pattern feels familiar by bedtime.
Relaxation therapy is one of the behavioral approaches the AASM supports for chronic insomnia, alongside stimulus control and sleep restriction, with CBT-I as the strongest recommendation[4]. The CDC's basics of a regular schedule and a quiet, cool bedroom still come first[5].
The honest summary
- Slow, exhale-focused breathing has real, if early, evidence for calming the body.
- Five minutes a day was enough to improve mood in one randomized study.
- It's a helpful tool, but not a substitute for treating anxiety or chronic insomnia.
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Frequently asked questions
What is the 4-7-8 breathing method?
It's a slow-breathing pattern: inhale for 4 counts, hold for 7, exhale for 8. It hasn't been studied as closely as the techniques above, but it follows the same slow-exhale principle linked to relaxation[2].
How long does it take for breathing exercises to work?
Many people feel calmer within minutes. In the Stanford study, benefits built over a month of five-minute daily practice[1].
Can breathing exercises help me fall asleep?
Relaxation techniques are among the behavioral approaches supported for chronic insomnia[4], and slow breathing is linked to lower arousal[2].
Is breathing better than meditation for stress?
In one randomized study, cyclic sighing improved mood more than mindfulness meditation over a month[1]. Both can be useful; pick the one you'll actually do.
Are there other ways to calm down before bed?
Yes. See our wind-down routine for stressful days and how stress impacts sleep.
Sources
- Balban MY, Neri E, Kogon MM, et al. Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Rep Med. 2023;4(1):100895. doi:10.1016/j.xcrm.2022.100895
- Zaccaro A, Piarulli A, Laurino M, et al. How breath-control can change your life: a systematic review on psycho-physiological correlates of slow breathing. Front Hum Neurosci. 2018;12:353. doi:10.3389/fnhum.2018.00353
- National Institute of Mental Health. I’m So Stressed Out! Fact Sheet. NIH Publication No. 20-MH-8125. nimh.nih.gov
- Edinger JD, Arnedt JT, Bertisch SM, et al. Behavioral and psychological treatments for chronic insomnia disorder in adults: an American Academy of Sleep Medicine clinical practice guideline. J Clin Sleep Med. 2021;17(2):255-262. doi:10.5664/jcsm.8986
- Centers for Disease Control and Prevention. About Sleep. Reviewed November 20, 2023. cdc.gov
About the Vita Globe Editorial Team
The Vita Globe Editorial Team researches and writes our wellness content, working from peer-reviewed research, systematic reviews and guidance from bodies such as the NIH and the FDA. We cite our sources inline and update articles when the evidence changes.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This article is for informational purposes only and is not a substitute for medical advice. Talk to your healthcare provider before starting any new supplement, particularly if you are pregnant, nursing, taking medication, or caring for a child.
