I ran a campaign a few years ago trying to get students to protect their hearing in clubs and bars.  Free ear plugs were given out, posters and flyers and articles went everywhere possible.  The RNID runs a similar campaign across the country every year but still people pay little attention.

People are aware that loud noise can damage hearing and cause tinnitus but I doubt that people ever think about the more subtle effects of it.  I know some deaf people who have stopped wearing hearing aids because it gets so uncomfortable.  I seem to be fairly resilient to it but even so I get headaches and find it harder to focus my eyes properly when I've been subject to too much loud noise for a while.