Go into any gym and pay attention to the breathing of exercisers. You’ll see people with their mouths open, out of breath and gasping for air.

Let’s step back and analyze proper breathing for exercise.

Activity raises your heart rate and your muscles cells need oxygen, which is exchanged through the lungs. When you increase your activity, it makes sense that you need more oxygen to meet the demands of your working body. And breathing supplies oxygen the needed oxygen.

You have two options to get your oxygen intake. One is through your mouth and the second is through your nose. One would think that there is no difference how oxygen is supplied. Yet there is.

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