All u need to do is listen to superfreak or crazy train u will be dancin
What happens when you daydream while listening to loud music about 4-6 years? Will anything happens to your body?
It affects your ears. Hearing loss from loud music and you get these musical ear worms in your head.
Rock on now dude .Expect hearing aids later.
Primarily, you waste 4-6 years of your life. Go learn something.