Sound Healing How Does It Work?
By using auditory recordings that produce different frequencies, we can influence the brainwave frequencies. This way you can quickly get into the desired state, for example if you want to meditate or sleep deeply. This happens because the brain tunes in to the frequencies we hear, this process is also called “Brainwave Entrainment”.
Brainwave entrainment is a practice that aims to induce brainwave frequencies by tuning to outside stimuli, through sound or light effects. Sound effects are often used in the form of binaural beats, isochronic tones or the so-called Solfeggio tones.
Brain hemisphere synchronization.
An additional result of listening to frequencies is that both hemispheres of the brain will show the same frequency, causing brain hemisphere synchronization. Increased levels of synchronization are common in people who meditate regularly and those who are very satisfied with their lives in general.
See also Wikipedia http://en.wikipedia.org/wiki/Brainwave_entrainment