How to Breathe When Running

How should you breathe when running?

The simplest way to breathe when running is to breathe deeply from your belly through both your nose and mouth in a steady rhythm. A common pattern is breathing in for three steps and out for two at an easy pace, shifting to two steps in and one out when running harder. If you are gasping, you are usually running too fast, so slow down.

The key word is deep. Many new runners breathe with quick, shallow chest movements, which brings in very little air and leaves them feeling short of breath. Instead, aim for belly breathing, also called diaphragmatic breathing. As you breathe in, let your stomach expand outward rather than lifting your shoulders up towards your ears. As you breathe out, let your belly fall back in. This uses your diaphragm, the large muscle under your lungs, so each breath moves more air and feels calmer.

A good way to learn the feeling is to practise while lying down or standing still. Place one hand on your chest and one on your belly, then breathe so the lower hand moves and the upper hand stays fairly still. Once that feels natural, carry it into an easy walk, then a gentle jog. Relax your shoulders, keep your posture tall and let your breathing settle into a rhythm rather than forcing it.

Should you breathe through your nose or mouth?

For most running, the best answer is both. Breathing through your nose and mouth at the same time lets you take in the most air for the effort you are putting out. Your nose alone simply cannot supply enough oxygen once your pace picks up, so trying to keep your mouth closed usually leaves you feeling starved of air.

Nose breathing does have a place. On very easy runs, warm-ups and recovery jogs, breathing gently through your nose can help you keep the effort low and your rhythm relaxed. Some runners like it as a built-in check, because if you can no longer breathe comfortably through your nose, it is a sign you have drifted faster than an easy pace. For anything from a steady run upwards, though, open your mouth and let the air flow freely through both.

What is rhythmic breathing?

Rhythmic breathing simply means matching your breaths to your steps in a repeating pattern. Instead of breathing at random, you count your footfalls and breathe in over a set number of steps, then out over another set number. This gives your breathing a steady, predictable structure that can help you stay relaxed and hold your effort in check.

A widely used pattern is three steps as you breathe in and two steps as you breathe out at an easy pace, often written as 3:2. As you run harder and need more air, you shorten the pattern to two steps in and one out, or 2:1. Some runners prefer even numbers, such as 2:2. There is no single correct count, so treat these as starting points and settle on whatever feels natural and comfortable for you.

Rhythmic breathing is one helpful approach rather than a strict rule. If counting steps feels fiddly or distracting, you do not need to force it. Plenty of runners breathe well by simply keeping the effort easy and letting their body find its own rhythm. Use the pattern as a tool when it helps, and let it go when it does not.

Why do I get out of breath so quickly?

The most common reason is simply running too fast. If you are gasping, snatching at air or unable to say more than a word or two, that is your body telling you the pace is above your current easy effort. The fix is not better lungs on the day, it is slowing down. Ease back to a pace where you could hold a short conversation, and your breathing will usually settle within a minute or two.

Shallow chest breathing makes this worse, so return to deep belly breaths whenever you feel yourself tightening up. It also helps to relax. Tense shoulders, a clenched jaw and a hunched posture all make breathing harder than it needs to be. Drop your shoulders, loosen your hands and stand tall as you run. Fitness improves with consistent easy running over weeks and months, so being out of breath early on is normal and not a sign that you cannot run.

If you regularly feel breathless out of proportion to your effort, or you notice chest pain, wheezing or dizziness, it is worth speaking to a doctor or another qualified professional before pushing on.

How do you stop a side stitch?

A side stitch is that sharp cramp under your ribs, usually on one side, that can appear when you run. The most reliable response is to slow down. Ease your pace right back, or drop to a walk for a short spell, and the stitch will often fade on its own.

While you slow down, focus on slow, deep belly breaths rather than shallow panting, and try to relax your torso. Some runners find it helps to gently press a hand into the sore spot, or to breathe out firmly as the foot on the opposite side lands. Leaving a little more time between eating a large meal and running can also reduce how often stitches show up. Once the pain has settled, ease back into your run gradually. If a stitch is severe, keeps returning or does not ease when you stop, check in with a qualified professional.

How Edge keeps your easy runs easy

Comfortable breathing comes down to running at the right effort, and that is exactly what Edge is built to help with. You get an AI-built, coach-checked training plan that is ready within a day, with clear easy and hard days so you are not accidentally turning every run into a gasping effort. One plan covers running, strength, HIIT and mobility, and it flexes around your life when things get busy.

Edge tracks your progress, streaks and habits, syncs with Apple Watch, Garmin and Coros, and includes Flexi Swap so you can move sessions around without losing your rhythm. If a run feels harder than it should, you can message a real coach anytime. More than 18,000+ members train with Edge, and you can start with a free 7-day trial, then continue from £19.99/month.