Breathwork For Anxiety: Which Techniques Actually Work?

Doing breathwork while you’re anxious sounds a lot simpler than it is in practice. Tell someone who is feeling anxious to take a deep breath, and you will probably just make things worse, not better. Then, there’s also the fact that if you breathe the wrong way while your nervous system is already lit up, you can end up light-headed, tingling, and short of breath –– the exact sensations that fuel panic.

In reality, "breathwork" can mean anything from a slow five-count exhale to fast, forceful hyperventilation, despite those practices having very different effects on the body. Breathwork facilitator Jamie Clements and psychologist, psychotherapist, and trainer in transformational breath Elif Clarke, BABCP, explain what's happening when you're anxious and which techniques can actually help.

Does breathwork actually work for anxiety?

Yes, although the evidence comes with caveats. A 2023 meta-analysis found breathwork produced a small-to-medium reduction in anxiety, while the researchers also flagged limitations in study quality. Breathwork can still be one of the few free, evidence-backed tools you can reach for anywhere, in under a minute, without an app or a subscription.

Yes, although the evidence comes with caveats. A 2023 meta-analysis of randomised trials found breathwork produced a small-to-medium reduction in anxiety, while the researchers also flagged limitations in study quality. Breathwork can still be a useful, free, evidence-backed tool that you can reach for almost anywhere, including in the moment anxiety starts to rise.

What anxiety actually does to your breathing

Anxiety can speed up your breathing before you've even noticed it happening. "Anxiety is accompanied by physiological arousal, the body is preparing for threat," explains Clarke. "Slow, comfortable breathing can help reduce that level of activation and increase parasympathetic, or vagal, influence on the heart." Heart rate naturally rises slightly as you breathe in and falls as you breathe out. Slowing the overall breathing rate can encourage that shift towards a calmer physiological state.

Why the simplest technique tends to win

Forget viral anxiety hacks. Clements sorts people into three different states before he recommends any type of breathwork, and each one gets a completely different answer.

• Wired: Racing thoughts, a tight chest, and restlessness. He recommends extending the exhale: “Roughly four seconds in, six to eight out.”
• Flat: Foggy, shut down, and low on energy. Calming breathing can leave someone feeling flatter, so Clements starts with movement and a fuller inhale. “Come up before you come down.”
• Low-level anxiety: For the background anxiety that follows you through the day, he recommends coherent breathing: five seconds in, five seconds out for 10 minutes daily. “Least dramatic, most effective.”

Box breathing, 4-7-8, or the physiological sigh?

Clarke walks through what each one is actually doing, and where each falls short.

Box breathing uses equal counts for inhale, hold, exhale, and hold again. It slows breathing substantially, but the holds are the catch. "Breath-holds deserve some caution, particularly in someone who is acutely anxious," Clarke says. "If a person is already feeling breathless, panicky or highly aware of their breathing, holding the breath for several seconds can sometimes create air hunger."

4-7-8 breathing pairs a short inhale with a long hold and a longer exhale. Some research links it to lower heart rate and blood pressure, but Clarke is blunt about the hype around the specific numbers. "There is not yet strong evidence that the exact 4-7-8 ratio has a unique physiological advantage."

The physiological sigh is a double inhale through the nose followed by one long exhale through the mouth. It's Clements's go-to for anxiety in the moment, alongside plain extended-exhale breathing. "Your body already does this when you cry. You're just doing it deliberately." No counting, no holds, which counts for a lot when concentrating on anything feels hard.

Coherent breathing, five seconds in and five seconds out with no holds at all, is the one both experts come back to for the low, everyday version of anxiety rather than a spike.

Clarke's actual rule of thumb cuts through most of what's online about all four. "Slow the breathing gently, allow the exhale to be comfortable and perhaps slightly longer than the inhale, but do not force either the breath or the pauses."

Does your exhale really need to be longer than your inhale?

There is a physiological basis for extending the exhale. Heart rate rises slightly as you inhale and falls as you breathe out, but Clarke cautions against treating a longer exhale as a universal rule. “Studies directly comparing a longer exhale with an equal inhale-to-exhale ratio suggest that the overall slowing of the breath may be at least as important as the precise ratio.”

Clements keeps his advice practical: “Make your out-breath longer than your in-breath. That's it.”

When deep breathing makes anxiety worse

"Take a deep breath" is well-meant advice, but it can backfire. Repeated large or fast breaths can tip someone into overbreathing without them noticing, particularly when anxiety has already changed the way they're breathing.

Clarke explains the chemistry underneath that. "When we overbreathe, we exhale carbon dioxide faster than the body is producing it. Carbon dioxide levels in the blood fall, which changes blood pH and causes blood vessels in the brain to constrict temporarily." That's what produces the light-headedness, the sense of unreality, tingling around the mouth or in the hands and feet, sometimes muscle tightness or cramping. These symptoms are driven by carbon dioxide levels falling as it is exhaled faster than the body is producing it.

For someone already anxious, those sensations can create a feedback loop. Dizziness, tingling, breathlessness, and a racing heart can all feel like signs of panic. “The person may interpret them as evidence that something is wrong, which can increase fear and lead them to breathe even more,” Clarke explains.

Clements is equally cautious about fast, forceful, high-volume breathing when you're already anxious. “If you're already anxious and you pick one of those, you'll feel worse, and reasonably so.”

Breathwork can also become another thing to worry about. “I meet people who've read every book and downloaded seven apps and now lie awake worrying they're breathing wrong,” says Clements. If a technique increases fear, physical tension, dizziness, or disconnection, stop. He suggests shifting your focus away from breathing altogether: name three things you can see, feel your feet on the floor, and let your breathing return to its own rhythm.

Clarke adds a caution worth holding onto here too. Stronger breathing practices can sometimes intentionally raise physiological and emotional activation in a therapeutic setting, but that needs real preparation and a practitioner around it. The dizziness or tingling associated with ordinary overbreathing comes from the resulting drop in carbon dioxide.

Should you practise before you're actually anxious?

If you’re only reaching for your breath during a crisis, that is, in Clements's words, “like only doing fire drills during a fire. You're asking your nervous system to learn something new at the exact moment it's least able to.” Regular practice makes the technique familiar before you need to use it under pressure.

His routine is five to 10 minutes of slow breathing once a day, attached to something that already happens, such as waiting for the kettle to boil or before opening your laptop. He also recommends occasionally noticing your breathing without trying to change it. “There's no streak to break and nothing resets. Your breath doesn't keep score,” he says.

Can breathwork help during a panic attack?

It can, although mid-panic isn't the time for a complicated breathing protocol. The NHS recommends slow breathing as one way to manage a panic attack, while Clarke advises avoiding repeated large breaths, rapid mouth breathing, intensive connected breathing, and long breath-holds. “In that moment, simpler is often better –– slower, quieter breathing, without forcing the breath.”

Clements also says that if you've had a frightening experience involving your airway before, asthma, choking, or a panic attack that centred on breathlessness, breathwork is probably not the safest place to start. "Starting elsewhere and coming back to it later isn't failure. It's good sequencing." Grounding through your feet or your senses first, and returning to the breath once you're steadier, works just as well.

Breathwork isn't a substitute for treatment

Slow breathing can lower physical arousal in the moment. Persistent anxiety, particularly when it starts affecting your day-to-day life, may need treatment such as therapy or medication.

Clements pushes back gently on the idea that every uncomfortable feeling needs breathing away in the first place. "Sometimes the more valuable skill is learning to breathe with it, to learn it's okay to be with the anxiety, the anger, the grief, and keep breathing gently while it's there. Breathing something away is a useful short-term tool. Breathing with it is what actually builds your capacity to handle being human." 

If a technique consistently leaves someone feeling worse rather than steadier, his advice is direct. "That's information worth taking to a trauma-informed therapist or somatic practitioner. There's no shame in needing more support than a technique can offer. You should come out of a practice feeling more like yourself, not less."

Practising gives you something familiar to reach for when things get hard, rather than having to learn a technique from scratch in the moment you need it most.

Your most asked breathwork for anxiety questions

What is the best breathing exercise for anxiety?

For a spike, the physiological sigh or a simple extended exhale. For everyday low-level anxiety, coherent breathing at five seconds in and five out.

How long should you do breathwork for?

One to 10 minutes for an acute moment. Five to 10 minutes once a day, if you're building a regular practice.

Is box breathing good for anxiety?

It slows breathing effectively, but the holds can create air hunger in someone already feeling panicky, making simpler techniques easier to use mid-anxiety.

Does 4-7-8 breathing work?

It can lower heart rate and blood pressure for some people, although evidence hasn't shown a unique advantage to the exact 4-7-8 ratio.

Can breathing exercises make anxiety worse?

Yes, if they're fast, forceful, or high-volume. Overbreathing lowers carbon dioxide and can trigger dizziness, tingling, and breathlessness that feel a lot like panic.

Can breathwork help during a panic attack?

It can, favouring slow, simple, unforced breathing over anything with breath-holds, which are harder to manage once panic has already set in.

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