Musica Relax Di Natale According to a little-scale 2017 study, Hearing music in headphones even though beneath nearby or basic anesthesia can reduce cortisol levels throughout surgical procedure, and decrease post-op soreness and stress. Dr. Daniel Levitin, of McGill University in Canada, and colleagues talk about this theory in the https://www.youtube.com/watch?v=BkaFW11OGEs