Humming for Vagus Nerve Stimulation and Nitric Oxide Production

The vagus nerve runs from our brain all the way down to our abdomen. It is an often overlooked part of our body that can have beneficial effects for our health and wellbeing.
The vagus nerve is responsible for the production of nitric oxide in the sinuses. Nasal nitric oxide is a natural anti-viral which helps in our respiratory system defenses alongside our nasal hairs (cilia) and nasal mucus.
By practicing functional breathing such as the exercises in the Buteyko Breathing Method, the vagus nerve can be used to normalize blood pressure. When stimulated, it lowers the speed of the heart rate and dilates blood vessels.
Vagus nerve stimulation can also activate the body’s relaxation response by activating the body’s parasympathetic response, helping to calm us if we’re facing a stressful situation or a panic/anxiety attack.
Buteyko Clinic founder Patrick McKeown leads his guest Ruth through a simple exercise to stimulate the vagus nerve by humming. The levels of nitric oxide in the sinuses can be greatly increased by humming during the exhalation when compared with exhaling silently, as this study shows: pubmed.ncbi.nl....
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