Aesculapius employed the healing power of music to address health issues. Both Plato and Aristotle renowned thinkers shared the belief certain sounds had a profound effect on human emotions and spirit. Hippocrates also used music and sound as a means to help his patients unwind. In Ancient Egypt temples frequently held sessions for relaxation and well being. During Ancient times instruments were used to ward off spirits. Traditional American healing practices often incorporating Sound, song and dance, for treating ailments.