Illustration of a calm person breathing slowly in a quiet sage-green room

Breathing Exercises for Anxiety: What the Evidence Shows

Quick answer: Slow breathing exercises can take the edge off anxiety, and the research is promising but modest. A 2023 review of randomised trials found breathwork lowered anxiety a little more than comparison activities. The NHS suggests gentle belly breathing, counting to 5 in and 5 out, for at least 5 minutes. Breathing helps you cope in the moment; it does not replace care for ongoing anxiety.

Why does breathing change how anxious you feel?

When you feel threatened, your body speeds up. Your heart beats faster, your muscles tighten and your breathing becomes quick and shallow, often high in the chest. This is a normal alarm response. The trouble is that fast, shallow breathing can also feed the feeling of panic, because it produces sensations such as light-headedness and a tight chest that your mind then reads as more danger.

Breathing is one of the few parts of this alarm system you can steer on purpose. Slowing your breath, and especially making the out-breath long and unhurried, sends your body a signal that it is safe to settle. You cannot breathe your way out of every worry, but you can often lower the physical volume enough to think more clearly.

The World Health Organization lists relaxation techniques such as slow breathing and progressive muscle relaxation among the things people can do to help manage anxiety, alongside regular exercise, steady sleep and cutting down on alcohol.

What does the research actually show?

Breathing exercises are popular online, and some claims go well beyond the evidence. Here is what two careful studies found.

  • A review of randomised trials (2023). Researchers pooled controlled trials of breathwork in Scientific Reports. For stress, the main outcome, they included 12 trials with 785 adults. For anxiety, 20 studies were included, and breathwork showed a small-to-moderate benefit compared with control conditions (an effect size of about 0.32). The authors noted that most studies carried a moderate risk of bias, so the findings are encouraging rather than final.
  • A one-month daily practice trial (2023). In a study in Cell Reports Medicine, 108 people were randomly assigned to 5 minutes a day of one breathing exercise or of mindfulness meditation, for 28 days. All groups reported lower anxiety. A pattern called cyclic sighing gave the biggest daily lift in positive mood and the largest drop in breathing rate. On anxiety itself, breathwork did about as well as mindfulness, not better.

The honest summary: slow, regular breathing is a low-cost, low-risk tool that seems to help many people feel calmer. It works best as one part of a wider plan, not as a stand-alone answer for anxiety that keeps coming back.

Which breathing exercises can you try today?

Start with whichever feels easiest. You can practise sitting, standing or lying down.

ExerciseHow to do itGood for
NHS belly breathingBreathe in gently through your nose, counting 1 to 5 if that helps; breathe out through your mouth for 1 to 5. Repeat for at least 5 minutes.Daily practice and building the habit
Cyclic sighingTake a breath in through your nose, then a second short sip of air on top of it, then let a long, slow breath out through your mouth.A quick reset when you feel wound up
Box breathingBreathe in, hold, breathe out and hold, each for the same slow, comfortable count.Steadying yourself before a tense moment
Longer out-breathLet each breath out last a little longer than the breath in, without forcing it.Winding down in the evening

The NHS advises letting the breath flow into your belly as far as is comfortable, without forcing it. You may not reach a count of 5 at first, and that is fine. Loosen tight clothing and keep your feet flat on the floor, roughly hip-width apart.

How often should you practise breathing for anxiety?

The NHS suggests building a breathing exercise into your daily routine, not saving it only for bad moments. A skill you practise when you are calm is much easier to use when you are stressed. The 2023 daily-practice study used just 5 minutes a day, which shows that a short, regular habit is realistic.

A simple plan:

  • Pick a fixed time, such as after brushing your teeth or before you open your laptop.
  • Practise for 5 minutes, every day, for 2 to 4 weeks before judging whether it helps.
  • Use a short version (3 or 4 slow breaths) during the day when you notice tension rising.
  • Write down how tense you feel before and after, on a scale of 0 to 10, to see your own pattern.

Are there breathing methods to be careful with?

Slow, gentle breathing is generally safe. Fast, forceful breathing styles are different. In the 2023 review, only 2 of the 12 stress trials looked at fast-paced breathwork, and that small group did not show a clear benefit. One fast-paced study reported side effects such as hot flushes, shortness of breath and sweating in some people. The authors called for more safety research.

If any exercise makes you dizzy, tingly or more anxious, stop, breathe normally and try a gentler pattern later. If you have a heart or lung condition, are pregnant, or have a history of fainting, check with your doctor before trying intense breathing practices.

When is breathing not enough?

Breathing exercises are a coping skill. They do not treat the reasons anxiety keeps returning. Anxiety disorders are the most common mental disorders worldwide: the WHO estimates that 470 million people had one in 2023, yet only about 1 in 4 people who need care receive any treatment.

Consider speaking to a professional if:

  • worry or fear is present on most days and is hard to switch off;
  • anxiety is affecting your sleep, work, studies or relationships;
  • you avoid places, people or tasks because of how you might feel;
  • you rely on alcohol or other substances to calm down.

Talking therapies based on cognitive behavioural therapy (CBT) have the strongest evidence for anxiety, according to the WHO. A counsellor can help you understand your triggers, practise skills like breathing in a planned way, and gradually face what you have been avoiding.

If you ever feel unable to cope or keep yourself safe, please get help now. Manas is not an emergency service. In an emergency, call 112 or go to the nearest hospital emergency department.

Frequently asked questions

Do breathing exercises really reduce anxiety?

For many people, yes, to a modest degree. A 2023 review of randomised trials found breathwork lowered anxiety slightly more than comparison activities. Results vary between people, and the studies had limitations, so treat breathing as a useful coping tool rather than a complete treatment.

How long does a breathing exercise take to work?

Many people feel a little calmer within a few minutes. The NHS suggests practising for at least 5 minutes at a time. The bigger benefit comes from daily practice over several weeks, because the skill then becomes easier to use when anxiety rises.

Which breathing technique is best for anxiety?

There is no single best method for everyone. In one 2023 trial, cyclic sighing gave the largest lift in mood, while gentle belly breathing is the simplest place to start. Choose a slow pattern you can repeat comfortably every day.

Can breathing exercises make anxiety worse?

Occasionally. Focusing on your breath can feel uncomfortable at first, and fast, forceful breathing styles have caused dizziness and other side effects in some studies. If you feel worse, return to normal breathing and try a slower, gentler exercise later.

Can I use breathing exercises instead of counselling?

Breathing can help you manage moments of anxiety, but it does not address why anxiety keeps returning. If worry affects your daily life for weeks, talking therapy such as CBT is recommended by the WHO, and breathing can be one skill you use within it.

What should I do if I feel unable to cope right now?

Reach out for support straight away. Manas is not an emergency service. In an emergency, call 112 or go to the nearest hospital emergency department. Telling someone you trust also helps.

Want help building calmer habits?

If anxiety keeps coming back despite your best efforts, you do not have to manage it alone. Read about what anxiety symptoms feel like and what to do, explore individual counselling at Manas Center in Bhopal and online across India, or book a session when you are ready.

Sources

Written by
Manas Editorial Team

Plain-language guides on mental wellbeing, based on published research. Counselling at Manas Center is led by Dr. Priya Dubey Sharma, Founder & Consulting Psychologist.

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