So what selectively turns on a gene (a program) within you and why?  You are at your 1st level of being bio-electric, then bio-chemical.  DNA is bio-chemical, so it is controlled by the energetic or bio-electrical part of your being which includes your thoughts, emotions, and beliefs.

Just as most heart attacks occur Monday morning from restarting a stressful undesirable work week, so are many diseases turned "ON" by strongly charged, deeply rooted thoughts, emotions, or traumatic experiences. This has a strong effect on what parts of your DNA is turned on and how it manifests or expresses itself physically in your health.  In reverse, many people who have experienced "Spontaneous Remissions" form terminal health conditions have reported things like a profound change in there awareness, desire or purpose to live made the difference.  You were designed to heal yourself from within and assisting that process can come from many sources.

Your Cells are living liquid crystal energy semiconductors.

Just like a liquid crystal radio, they transmit, they listen and respond to the signals received.

So what does all this have to do with Human BioAcoustics?  Your voice helps expose what's going on inside you by what bioacoustics frequency equivalents are out of coherence.  Knowing this can help you bring back you natural bodies bio-frequencies to coherence by way of external changes to the information by way of lifestyle changes in many ways, and or feeding back to the body frequencies through the Sound Presentation or biofeedback portion to help the body obtain coherence on its own at the level the brain talks to your body.