You breathe about 20,000 times a day, and almost no one is taught how to do it well. Most of us breathe shallow, fast, and through the mouth, up in the chest, like we're always a little braced for danger. Learning to breathe properly is one of the highest leverage things you can do for your performance and your nervous system, and it costs nothing. Your body works more efficiently when it is relaxed, not tensed up.
First: breathe through your NOSE, in and out. Your nose isn't just a backup mouth. It filters and warms the air, and it releases nitric oxide that helps you actually absorb more oxygen. Nasal breathing naturally slows you down and builds your tolerance to CO2, which is what lets you stay calm and not gas out. Mouth breathing is for emergencies, nose breathing is for living and for playing.
Second: breathe into your BELLY, not your chest. This is the big one. On the inhale, your belly should gently push OUT, your diaphragm is dropping down and pulling air deep into the bottom of your lungs. On the exhale, your belly comes back IN. Put a hand on your stomach and feel it: out on the in breath, in on the out breath. Your shoulders stay dropped and relaxed, they should not rise when you inhale. If only your shoulders and chest are moving, you're shallow breathing and only using the top of your lungs, where the body keeps its stress response wired.
Third: know the difference between LONG breaths and QUICK breaths, because they do opposite things. Long, slow breaths, especially a long, slow exhale, pump the brakes: they switch on the calming, parasympathetic side of your nervous system. That's your tool before a big moment, when nerves spike, or to fall asleep. Short, quick, sharp breaths do the opposite, they rev you up and sharpen alertness. That's your tool to wake up and get fired up before you compete. Same breath, different speed, totally different state.
That's the real power here: your breath is the one lever on your nervous system you can grab with your hands. Control the breath, and you steer the state. Once you've got this, the Box Breathing tool will land a whole lot deeper.
Belly pushes out, diaphragm drops, lungs fill from the bottom.
Belly comes in, diaphragm lifts, air flows out.
Your shoulders stay dropped and relaxed the whole time. They should not rise when you inhale.
Try It Today
Hand on belly. Inhale slowly through your nose, belly out. Exhale slowly through your nose, belly in. Ten rounds. Notice how much calmer you feel.