This is hard to believe. Trained musicians that have to perform a variety of music must notice correlations by now in a sort of ''epidemiology of sound' that so-called "discordant" music increases the chances of discordant health. If you've seen this measured properly, then please post references.healthwise you are much better off listening to classical music or opera. Just avoid all the atonal discordant stuff.
Rock music can have a very negative effect on your psyche and well being. The lyrics do even worse things to your brain.