This is a great presentation and a good introduction to a wide variety of concepts that can be explored in a very in-depth manner. Essentially, as the video shows, it all comes down to ones health (mentally and physically). Though I would love to see a full discourse on his introduction on the science and spirituality of sound, the later topics he discusses are of great importance to all people (in a more direct sense). Being a student of Sound Recording Technology you will never hear the end of professors’ rantings on the terrible quality of mp3s and consumer audio, as well as the disregard for the human hearing system that modern society exemplifies. While this can become tiring, the variety of ways one may be trained to listen and the level of detail that is needed may cause anyone involved with such training to become very conscious of their hearing health in order to keep or develop these abilities. For example, one may listen to analyze performance intensity vs. the mix level of a certain instrument in a recording. Other more difficult skills include analyzation of pitch areas of drums and cymbals or the character of a certain type of reverberation. In a more broad and overarching sense, however, sound affects our health in very overt ways, as is pointed out in the video. The fact of the matter is that if our ears and mind are forced to withstand bombardment of loud or unorganized sound (noise) constantly, or if we are forced to do extra work in order to process the sound then our whole being is stressed. As the mind is distracted the body and emotions are subject to their environment without the guidance of thought. However, in modern american society it is clear that visual aesthetic has won out heavily over the auditory arts. Thus, the effects of different types of sound and noise are relatively under appreciated by many medical professionals and artists alike.