When we sit and listen to a waterfall, creek, or river, we expose ourselves to ultrasound frequencies that are not audible but are present as documented by instrumentation. A walk by the ocean will produce the same effect. He had a meter that recorded the presence of ultrasound frequencies and played a recording of a waterfall, and it lit up. Amazing! At the same time, it did not light up when a voice spoke into it.
There are many sources of these ultrasounds in the natural world instead of the artificial environment that most people live within. The sounds of the wind in the trees, the birds chirping, and many other sounds one encounters on a walk in the woods produce these frequencies that are so beneficial.
What is even more amazing about this phenomenon is the biological function that occurs within our nasal passage. When exposed to these ultrasound frequencies, special cells stimulate the production of nitric oxide which is responsible for reducing our blood pressure and slowing our heart rate. Other producers of these ultrasounds are full sound spectrum musical instruments such as the harp and piano!
A look at the properties of nitric oxide reveals that the endothelium (inner lining) of blood vessels uses nitric oxide to signal the surrounding smooth muscle to relax, resulting in vasodilation and increasing blood flow. It also results in reducing blood pressure. Interestingly, breathing through the nose produces nitric oxide, but breathing through the mouth does not have the same effect.
https://en.wikipedia.org/wiki/Nitric_oxide
John Stuart Reid from the Shift Network provided a class on the subject of Sound Therapy. He has also developed a Cyma Scope (the name is taken from the word cymatics) that can display beautiful geometric patterns of different sounds that are sampled or spoken into a microphone.
Through the images produced by the Cyma Scope, John demonstrates how structured sound is, and how beautiful it is to be able to “see” sound. For example, he experimented with a dolphin research group in Florida, which demonstrated that the sonar signals a dolphin sends out can be used by the dolphin to produce an image of what the sonar signals are bouncing off. This ability enables it to “see” with sound, even in murky water.
Experiments are underway to find out if the sound from a heart beating could be used to help diagnose any pathologies that might exist. Another area of possibility is the ability to hear cells and determine if they are cancerous or healthy. John even showed a Cyma Gram of a healthy body cell compared to a cancerous cell. This ability leads to the possibility of a surgeon being able to use the Cyma Scope to be able to tell if they were able to excise all of a tumor during an operation.
The medical world is embracing music and sound therapy more and more as studies reveal the abilities of sound and music to address disease. As we come to understand more about the properties of sound that can be applied, additional applications will be developed.