Does listening to metal have any negative effects?

[Diana]

Just a note: humans aren't plants. We have complex minds and living in 3D creates a lot of confusion and diversity of experience (as much as can be observed, plants and animals don't react with offense, jealousy, self-pity etc.). There are schools of thought (new age etc,) that label anger as bad. Anger is just an emotion on the spectrum of emotions. It's when it's denied and repressed that it becomes toxic, as is true with any emotion. 

People also tend to adhere to certain behaviors based on age. This is partly due to things such as frontal lobe development and the aging of the body; but it also reflects the amount the individual is affected by what they "should" be doing or acting like. This is repression.

I'll say it again: try not to judge what music is appropriate. Let it just be—whatever you are attracted to at any given moment, let it flow through you and feel it and love it and appreciate the gift and interaction. While I agree that what we let ourselves be exposed to has an effect, this is only efficacious to the point that we are our authentic selves. If we have denied emotions, and we also repress anything that is considered "bad," it may be surmised this is not a good recipe for self-realization.

I can see why plants wouldn't like really fast, loud music with a lot of energy—they are stationary creatures who do not move. But here's another thought: quantum physics has proven the observer always affects the outcome (double-slit experiment). Could it be the people who ran the plant/music experiment loved Indian music?  

The problem with the plant experiment is that it is implying that "these things" are good and "these things" are bad.