Unlocking Inner Peace: The Power of Breathwork for Stress Relief and Mental Clarity

Notice your breathing right now. Is it high in the chest, or low in the belly? Is it fast, slow, or somewhere in between? Most of us do not pay attention to our breathing unless it is struggling, which means we often miss the thing it is telling us.

Breathing is the one part of the nervous system we can consciously influence. Most of what the body does automatically, such as heart rate, digestion, and blood pressure, happens without us. Breathing is different. It runs on its own when we are not paying attention, and shifts when we choose to guide it. That small opening is a clinical doorway.

When I teach breathwork, the question I am often asked first is whether it actually makes a difference, or whether it is simply a way of feeling like you are doing something. It is a fair question. This piece is an attempt to answer it honestly: what breathwork is, what the research says about it, and one technique with strong evidence that you can try yourself.

Breathwork is an umbrella term. It refers to any practice that uses deliberate control of the breath to influence how the body and mind feel. Some styles are slow and gentle. Others are faster and more activating. Some come from yogic or contemplative traditions. Others have been developed in clinical and research settings. They share a common premise: that the way we breathe is not fixed, and that changing it can change how we feel.

There is no single breathwork. There are many, and they work in different ways. Some are better suited to everyday stress. Some are designed for specific situations like performance or trauma processing. A short overview of the most common styles sits below, with a note about which ones suit which purpose.

The rest of this piece focuses on the style with the strongest general-population evidence base and the easiest fit into everyday life: slow diaphragmatic breathing at around six breaths per minute.

Breathing is controlled by the autonomic nervous system, the same system that manages the stress response. When the body perceives threat, breathing becomes faster and shallower, drawn up into the chest. Heart rate rises. Muscles tighten. This is the sympathetic side of the nervous system, often described as fight or flight.

When the body perceives safety, breathing slows and drops into the belly. Heart rate eases. Muscles soften. This is the parasympathetic side, often described as rest and digest. The vagus nerve is the main highway for this calming response, and a significant portion of it travels through the diaphragm, the dome-shaped muscle that sits beneath your lungs.

This is the part that often surprises people. The diaphragm is not just a breathing muscle. When it moves fully, it gently stretches and stimulates the vagus nerve and the pressure receptors around the heart and blood vessels. This is why slow breathing works best when it is diaphragmatic. Shallow chest breathing, even when slowed down, does not produce the same effect.

A recent meta-analysis of randomised controlled trials published in Scientific Reports (Fincham et al., 2023) found that breathwork was associated with small-to-medium reductions in self-reported stress, anxiety, and depressive symptoms compared to control conditions. A larger systematic review of 223 studies, published in Neuroscience and Biobehavioral Reviews (Laborde et al., 2022), found consistent increases in vagally-mediated heart rate variability during and after slow breathing practice. Heart rate variability is one of the most reliable markers we have for how well the nervous system is regulating itself.

In plainer terms: slow diaphragmatic breathing appears to shift the body toward its calming side, and the research supports that shift in ways we can measure.

If slow breathing helps, it is reasonable to ask why most of us do not do it more often. The honest answer is that stress and shallow breathing form a loop. When the body is stressed, breathing speeds up. Fast, shallow breathing keeps the sympathetic system switched on, which keeps the stress response going, which keeps the breathing fast and shallow. Many people notice that they cannot remember the last time they breathed fully into their belly.

The loop is self-maintaining, which is why "just calm down" rarely works. The nervous system does not respond to instructions. It responds to signals. Slow diaphragmatic breathing is one of the few signals we can send deliberately, which is part of why it has earned the research attention it has.

Learning the technique is not about replacing your natural breathing. It is about having one reliable way to shift the signal, when you need to.

Slow diaphragmatic breathing combines two things: breathing at a slower pace than usual, and letting the breath move down into the belly rather than stay up in the chest. A breathing rate of around six breaths per minute is often described as a sweet spot for the nervous system. Research studies suggest that rates between about five and seven breaths per minute produce consistent increases in vagal activity (You et al., 2024). Around six feels steady for most people and does not require specialist equipment.

Slow diaphragmatic breathing is taught as three connected skills.

The first is settling. Sit comfortably or lie down. Place one hand on your chest and one hand on your belly. Breathe normally for a few moments, without trying to change anything. Notice which hand moves more. For most people, the chest hand moves more than the belly hand. This is the starting point.

The second is slowing. Breathe in through your nose for a count of about five, and out through your nose or mouth for a count of about five. As you breathe in, let the belly hand rise before the chest hand. As you breathe out, let the belly hand fall. The aim is a gentle, full belly movement, not a forced or exaggerated one.

The third is staying. Continue for around five minutes. The first minute often feels effortful. The pace may feel too slow, or the belly movement may feel unfamiliar. This is normal. By the second or third minute, the body usually begins to settle into the rhythm. Five minutes, once or twice a day, is enough to begin noticing a shift over the course of a few weeks.

If the chest hand keeps leading, the breath is still staying too high. Try lying down and resting a book on your belly. The weight gives the diaphragm something to push against, which often helps the movement land where it needs to.

Slow diaphragmatic breathing is a practice, not a switch. The first few attempts are often the least pleasant. People sometimes feel lightheaded, anxious, or unexpectedly emotional. This usually eases as the body adjusts. If strong sensations persist, it is a signal to pause, return to normal breathing, and try again another day.

The research suggests that small, consistent practice tends to be more useful than long occasional sessions. A study in Scientific Reports found that even a single session of slow, deep breathing produced short-term increases in vagal tone and reductions in self-reported anxiety in both younger and older adults (Magnon et al., 2021). Five minutes in the morning and five minutes before sleep is a realistic starting place. Some people pair it with a transition point in the day, such as before a difficult meeting or at the end of a commute.

Breathwork is not a replacement for psychological or medical support. If you are experiencing persistent anxiety, panic, trauma responses, sleep difficulties, or any symptoms that interfere with daily life, speaking with a GP or psychologist can help you understand what is happening and identify the right kind of support. Breathing practices often sit well alongside therapy. They can be a useful part of a broader approach, without needing to carry the whole weight of it.

If you are struggling with your breathing in ways that feel physical, such as breathlessness, chest tightness, or a sensation that you cannot get a full breath, it is worth having this checked by a GP to rule out any underlying medical cause before assuming it is stress-related.

For the rest of us, breathing more slowly is one of the smallest changes you can make to the way your nervous system runs, and one of the most consistently supported by research. It is not a miracle. It is a signal. And it is one that your body already knows how to receive.