Breathing Exercises for Freediving: Start With the Diaphragm

The most useful breathing exercises for freediving train three things: breathing from the diaphragm instead of the upper chest, a slow breathe-up with long, passive exhales, and a full final breath that fills the belly, ribs and chest without strain. None of them involve fast or forced breathing. You can practise all of them lying on a yoga mat at home in about ten minutes a day.

Why breathing technique matters before a breath-hold

The way you breathe in the two minutes before a dive sets the state you dive in. Slow, quiet breathing with long exhales tends to bring the heart rate down and settle the mind. Fast or extra-deep breathing does the opposite of what people expect: it blows off carbon dioxide, which makes the hold feel easier while raising your risk of blacking out. Our post on why hyperventilating before a breath-hold is dangerous covers this in detail.

The aim is simple. Start each dive relaxed, with normal carbon dioxide levels and comfortably full lungs. Most of us don’t breathe that way by default. Hours at a desk, stress and shallow chest breathing become a habit, and it takes a few weeks of daily practice to change it.

Exercise 1: Diaphragmatic (belly) breathing

Lie on your back with your knees bent, one hand on your belly and one on your chest. Breathe in through your nose so the lower hand rises first while the upper hand barely moves. Let the breath out and feel the belly fall.

Do this for five minutes. A phone resting on your belly makes a decent feedback tool, as long as you trust yourself not to check messages.

Common mistakes:

• Pushing the belly out with the abdominal muscles instead of letting the diaphragm do the work.
• Breathing too big. This should be quiet, normal-sized breathing.
• Shoulders creeping up towards the ears.

Once it’s easy lying down, practise sitting, then standing, then in the lift at work.

Exercise 2: Rib (lateral) breathing

Place your hands on the sides of your lower ribs, thumbs towards your back. Breathe in so the ribs widen sideways into your hands. For more feedback, wrap a dupatta or resistance band around your lower ribs, cross it in front, hold the ends and breathe out against the light tension.

This trains the intercostal muscles to expand the ribcage, which is the middle part of the full breath you’ll learn below. It pairs well with stretching for freediving, since a stiff ribcage limits how far the ribs can move.

Exercise 3: The slow-exhale rhythm

Breathe in for about three or four seconds and out for about six to eight, roughly a 1:2 ratio. The exhale should be passive, as if the air is falling out of you rather than being pushed. A short natural pause at the bottom is fine.

Your heart rate naturally slows a little with each exhale, which is part of why longer exhales feel calming. Count for the first few sessions, then drop the count once the rhythm feels familiar. Counting forever turns relaxation into arithmetic.

Exercise 4: The breathe-up rehearsal

Now put the pieces together. Lie down and set a timer for two minutes. Breathe with the slow-exhale rhythm, diaphragm first, at normal volume. Your breathing shouldn’t be any bigger than it is at rest; it just becomes slower and smoother.

When the timer goes, finish with the full breath from exercise 5 and then return to normal breathing. On days when you’re doing a dry static apnea session, this same two minutes becomes the breathe-up before each hold.

Watch for signs that you’re overdoing it: tingling fingers or lips, light-headedness or a slightly buzzy feeling. Any of these means you’re over-breathing. Go back to ordinary breathing and start again with smaller breaths.

Exercise 5: The full final breath

The last breath before a dive fills the lungs in three parts. Start from a relaxed exhale, not a forced one.

1. Belly: breathe in low, letting the belly rise.
2. Ribs: keep inhaling as the ribs widen sideways and into your back.
3. Chest: top up into the upper chest, letting the collarbones lift slightly.
4. Stop short of straining. The last bit of effort to cram in more air usually brings tension into the neck and shoulders.
5. Hold with a relaxed throat, closing the airway gently instead of clamping the jaw.

Don’t rush it. Practise five full breaths with a minute of normal breathing between each, sitting or lying down. Keep your shoulders low and your face soft.

What about lung packing?

Packing, or glossopharyngeal insufflation, means pumping extra air into already full lungs using the mouth and throat. Deep and competitive freedivers use it. It carries real risks: it can make you dizzy or faint even on land by reducing blood flow back to the heart, and it puts extra stretch on lung tissue. It is not a beginner skill. Learn it from an instructor after months of flexibility work, if you ever need it at all. For your first year or two, a relaxed full breath is plenty.

A 10-minute daily breathing routine

Minutes	Exercise	What to notice
0 to 3	Belly breathing, lying down	Lower hand moves first
3 to 5	Rib breathing with a band or dupatta	Ribs widen sideways
5 to 8	Slow-exhale rhythm	Exhale falls out, no pushing
8 to 10	Two full final breaths with rest between	Belly, ribs, chest, no strain

First thing in the morning or just before bed works well. Avoid doing it straight after a heavy meal, when your diaphragm has less room to move.

Safety: These are breathing drills, not breath-hold drills. If you add holds, do them on land, lying down, and never in water without a trained buddy watching you, and that includes a bathtub or pool. Stop if you feel dizzy or tingly.

Your first two weeks of breathing practice

• Days 1 to 7: belly breathing and the slow-exhale rhythm, five minutes each, once a day.
• Days 8 to 14: add rib breathing and the full final breath, plus one two-minute breathe-up rehearsal each day.
• Throughout: notice where tension creeps in. For most people it’s the shoulders and jaw.

These drills connect to the rest of your training. The breathing you do after a dive is a different technique, covered in our guide to recovery breathing. If you come from a yoga background, our piece on pranayama for freediving explains which practices carry over and which don’t. The freediving.in community is coming soon. Stay tuned.