21/10/2025
I love physical therapies more and more. There are many to choose from. Vagus nerve stimulation / Nitric Oxide stimulation examples are all over YouTube.
Studies have shown that humming can dramatically boost nitric oxide production in the body, with some research suggesting levels can rise by as much as 1,400% in just 10 seconds. Nitric oxide is a vital signaling molecule that helps relax blood vessels, improving circulation and regulating blood pressure. It’s naturally produced in the brain by neurons, glial cells, and the endothelial cells that line blood vessels.
When you hum, the vibrations create oscillating airflow in your nasal passages. This improves gas exchange between the paranasal sinuses, which generate nitric oxide, and the nasal cavity, allowing more of this beneficial gas to circulate through the body.
The result is a number of health benefits. Higher nitric oxide levels help widen blood vessels, improve oxygen delivery, lower blood pressure, and enhance nutrient transport throughout the body. Regular humming can therefore support heart health, boost physical performance and recovery, sharpen mental function, and strengthen the immune system. It’s a simple, natural practice with surprisingly powerful physiological effects.