The principle of music stress reduction is to adjust physiological indicators such as blood pressure and heart rate, secrete endorphins, inhibit sympathetic nerves, and achieve a state of relaxation.

The principle of music stress reduction involves multiple physiological and psychological aspects. Music stimulation can cause the human body to lower blood pressure, slow breathing, slow heart rate, and increase blood vessel volume. In addition, music can promote the secretion of large amounts of endorphins in the body, which has an analgesic and pleasurable effect. Music also helps reduce stress hormone levels and increases the number of immunoglobulins, which has a positive impact on the immune system. By inhibiting the excitement of the sympathetic nervous system, music helps the human body reach a relaxed state, thereby affecting mental and psychological activities and helping people achieve psychological relaxation and calmness.