Breathing science
What research says about breathwork
You breathe about 20,000 times a day, mostly without noticing. Science now shows that changing how you breathe changes how you feel. Here are the key studies, explained in plain English.
~6
breaths a minute is where heart rate variability tends to peak
5 min
of daily cyclic sighing improved mood in one month
Nose
breathing syncs emotion and memory areas of the brain
Breathwork, stress and anxiety
The strongest body of evidence: controlled breathing reliably lowers stress and anxiety.
Across randomised trials, breathwork reduced self-reported stress, anxiety and low mood compared with control groups.
Effect of breathwork on stress and mental health: a meta-analysis of randomised-controlled trials — Fincham et al., Scientific Reports, 2023
Five minutes a day of cyclic sighing (long exhales) improved mood and lowered breathing rate more than mindfulness meditation over one month.
Brief structured respiration practices enhance mood and reduce physiological arousal — Balban et al., Cell Reports Medicine, 2023
A review describing how rhythmic yogic breathing may help regulate stress responses and support mood.
Sudarshan Kriya yogic breathing in the treatment of stress, anxiety, and depression — Brown & Gerbarg, Journal of Alternative and Complementary Medicine, 2005
Slow breathing and the nervous system
Breathing is the one automatic body function you can also control, which makes it a direct lever on the nervous system.
Slow breathing (under 10 breaths a minute) was linked with higher heart rate variability, more relaxation, comfort and alertness, and less anxiety and anger.
How breath-control can change your life: a systematic review on psycho-physiological correlates of slow breathing — Zaccaro et al., Frontiers in Human Neuroscience, 2018
Breathing at about six breaths a minute strengthens the baroreflex and heart rate variability, markers of a flexible, resilient nervous system.
Heart rate variability biofeedback: how and why does it work? — Lehrer & Gevirtz, Frontiers in Psychology, 2014
Breathing and the brain
The rhythm of your breath shapes brain activity, emotion and memory.
Breathing through the nose synchronises activity in emotional and memory areas of the brain. People recognised fearful faces faster when breathing in.
Nasal respiration entrains human limbic oscillatory activity and cognitive function — Zelano et al., Journal of Neuroscience, 2016
A small group of neurons in the brainstem's breathing centre connects breathing rate to calm or alert states, offering a biological reason why slow breathing calms.
Breathing control center neurons that promote arousal in mice — Yackle et al., Science, 2017
Active breathing and the body's response
Faster, energising breathing techniques can change how the body responds to stress.
Participants trained in a breathing and cold-exposure method showed a reduced inflammatory response and fewer flu-like symptoms after a controlled immune challenge.
Voluntary activation of the sympathetic nervous system and attenuation of the innate immune response in humans — Kox et al., PNAS, 2014
An honest note
Breathwork research is growing fast, but many studies are small. Breathwork supports wellbeing and is not a replacement for medical or psychological care. Some techniques are not suitable for everyone. Read our guide to breathwork contraindications.
Turn the science into practice
The Holosomatic® Method combines breathwork, bodywork and energy work in a trauma-informed way.