eli5: why do most, if not all, breathing techniques specify ‘out through the mouth’?

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i can understand in ‘through the nose’, since dust and other bits can be blocked by the nose hairs and mucus, and apparently the air is more likely to warm up when passing through the nose first, reducing irritation of the throat.

but what difference, if any, does exhaling through the mouth make?

In: 676

53 Answers

Anonymous 0 Comments

So, I usually breath in and out through my nose. Should I make a habit of exhaling through the mouth?

Anonymous 0 Comments

You don’t state which breathing techniques you refer to — the breathing technique for swimming is very different from that of giving birth or meditation.

There are some differences in the biomechanics that others have mentioned — in some cases improving the natural reaction like timing breaths to movement, and in others avoiding the natural but harmful reaction like hyperventilation in pain — but for an alternative or rather an _additional_ answer, I’d say that a big reason is that it makes it easier to be mindful of your breathing. It gives you a better capability to apply a technique to breathing than just breathing through your nose does.

Anonymous 0 Comments

You don’t state which breathing techniques you refer to — the breathing technique for swimming is very different from that of giving birth or meditation.

There are some differences in the biomechanics that others have mentioned — in some cases improving the natural reaction like timing breaths to movement, and in others avoiding the natural but harmful reaction like hyperventilation in pain — but for an alternative or rather an _additional_ answer, I’d say that a big reason is that it makes it easier to be mindful of your breathing. It gives you a better capability to apply a technique to breathing than just breathing through your nose does.

Anonymous 0 Comments

You don’t state which breathing techniques you refer to — the breathing technique for swimming is very different from that of giving birth or meditation.

There are some differences in the biomechanics that others have mentioned — in some cases improving the natural reaction like timing breaths to movement, and in others avoiding the natural but harmful reaction like hyperventilation in pain — but for an alternative or rather an _additional_ answer, I’d say that a big reason is that it makes it easier to be mindful of your breathing. It gives you a better capability to apply a technique to breathing than just breathing through your nose does.

Anonymous 0 Comments

There’s a great Huberman Lab podcast about various breathing techniques to achieve different physiological changes. I can’t remember but it has to do with the speed one breathes in vs. out. And that has a certain effect on your sympathetic nervous system, and thus impacts things like your stress/anxiety levels, heart rate, alertness level, etc.

Anonymous 0 Comments

There’s a great Huberman Lab podcast about various breathing techniques to achieve different physiological changes. I can’t remember but it has to do with the speed one breathes in vs. out. And that has a certain effect on your sympathetic nervous system, and thus impacts things like your stress/anxiety levels, heart rate, alertness level, etc.

Anonymous 0 Comments

There’s a great Huberman Lab podcast about various breathing techniques to achieve different physiological changes. I can’t remember but it has to do with the speed one breathes in vs. out. And that has a certain effect on your sympathetic nervous system, and thus impacts things like your stress/anxiety levels, heart rate, alertness level, etc.

Anonymous 0 Comments

When I was an elementary teacher I did this because if my students were upset they were usually a snotty mess, and if I didn’t specify to breathe out through the mouth then *I* would become a snotty mess.

Anonymous 0 Comments

I’m pretty skeptical of nearly every explanation that I’ve heard from this. You hear “Breath in through the nose, out from the mouth” constantly. From everyone from Drama teachers to Athletic coaches to Yoga instructors. None of them, ever, offer a satisfying explanation for why they want us to do this, or what it does. Often there’s some pseudo-scientific statement about that particular form of breathing actually doing something. I don’t buy it.

Except for one: It’s a way of visually demonstrating to the coach that you’re actually focusing on your breathing. It’s the only way they can see that you’re actually thinking about your breath.

Anonymous 0 Comments

I’m pretty skeptical of nearly every explanation that I’ve heard from this. You hear “Breath in through the nose, out from the mouth” constantly. From everyone from Drama teachers to Athletic coaches to Yoga instructors. None of them, ever, offer a satisfying explanation for why they want us to do this, or what it does. Often there’s some pseudo-scientific statement about that particular form of breathing actually doing something. I don’t buy it.

Except for one: It’s a way of visually demonstrating to the coach that you’re actually focusing on your breathing. It’s the only way they can see that you’re actually thinking about your breath.