Shelley Snow, Ph.D. has published research she has done with other scientists on Toning. The article may well be one of the most important pieces of research on the healing power of the voice - particularly through its indication that singing and toning improves heart rate variability. We trust that more research will begin to emerge demonstrating the healing power of sound (and particularly the voice). Link to this article:
http://rdcu.be/uYEA
