The unconscious normal breath should be a gentle, relaxed, slow-wave breathing in and out through the nose. Breathing in and out through the nose is the most important aspect of a normal breath.
You might be interested in a few of our blogs about breathing and breathwork:
3-Minute Breathing Exercise for Less Stress
Please note that this material is for educational purposes and is not intended to replace the advice, diagnosis, or treatments of your physician or healthcare practitioner. We encourage you to seek advice from your medical professional or physician regarding the applicability of the suggested practices above.