As usual, I'm just a weird one. I've been to some very loud concert/gigs, I was the dumb kid who wore headphones while listening to rock at full volume, I hung out with some guys who had drag-racing cars with my head right under the hood during revving, I used to love fireworks and big firecrackers, I went to NASCAR races and sat in the front (I even drove a NASCAR car around Fontana Speedway at 170mph) - all without hearing protection. But, the worst, were the illegal underground clubs I went to in Los Angeles (including doing the lighting for some of them). I still remember seeing a girl with hair down to her butt holding onto both sides of a large speaker cab (these were arranged in a 3x3 configuration) and the air being pushed out was blowing her long hair straight back! 72,000 watts will do that. The loudness was like a drug (especially things like playing an A chord in front of a cranked Marshall full-stack!). Heck, I even loved listening to jets (including the military kind I was supposed to fly).
I had the ringing afterwards, I had tinnitus, I had hearing loss (and excessive wax), I'm lucky I never burst an eardrum.
However, in complete opposition to some of the comments I read above, I was able to repair the damage, and I currently have far better hearing than most people my age. I've "fixed" or improved enough things that I'm firmly convinced just about anything is possible (and this "knowing" is key to getting results). I've regrown disks in my back that had degenerated together (the doctor even said "That's impossible!" while looking at the x-rays proving the opposite). I also just had my vision checked last week and it's still 20/10 (i.e., better than the so-called "perfect" 20/20). Not bad for someone on the north side of 55!
Here's one link for hearing improvement (I used some of his recordings).
Unfortunately, most of the body's potential to be healed with natural methods is held back due to seemingly everyone (i.e., so-called Professionals) putting financial agendas above healing. The FDA is pretty much owned by the large Pharmaceutical companies and will not approve anything that will cure or prevent. They only approve "treatments" which basically go after symptoms instead of causes. Ever see the commercials? There's always a long list of side-effects many of which sound worse than what the medicine is supposed to be treating! No thanks.