We can all agree that breathing is essential and one of the most important life-sustaining functions, if not the most important. We can go without eating, drinking and sleeping for days and only minutes without breathing. Besides the apparent gas exchange function, breathing also regulates our pH and can quickly influence our autonomic nervous system. Thus, knowing how to breathe well can positively affect our health and well-being, decrease stress and increase our mental and physical performance. When done well, altering our natural breathing pattern, which is what we do when practising pranayama or other breathwork techniques, can be very beneficial. However, altering our breathing patterns can be detrimental if the technique is not for us, is too advanced, or is based on misconceptions and pseudoscience.