Music has been shown to increase endorphin levels. These are the body's feel good hormones. They can reduce pain and induce a natural high. Research involving music therapy has shown that music relieves anxiety and provides distraction from pain by inducing the release of endorphins. Anesthesiologists now know that music can decrease the level of stress hormones in the body significantly.
Stress is caused by the release of the hormone cortisol in the bloodstream.
Music can trigger past romantic associations that the brain has linked with certain songs or pieces of music. This can summon intense romantic or sensual feelings from the past to manifest in the present. Music can slow down or equalize brain waves. The slower the brain waves, the more relaxed and peaceful we feel. The slower the brain waves, the more relaxed and contented we feel.