A few years back, I visited an audiologist to see if there was any treatment available for the tinnitus (ringing in the ears) I was experiencing. After the hearing tests were done and I got to talk to the doctor, he asked me what I did. When I told him that I was a music journalist, he smiled real big and said “Oh, you were there for all the best rock, eh?” and then told me that I had a 50% hearing loss above 6 kiloherz, which means I don’t hear high end sounds very well. Needless to say, there is/was no treatment for the tinnitus except to learn to ignore it. Fortunately for me, ‘denial’ is a tool in my family.
Of course, my hearing loss was a the result of many nights in front of very loud speakers - kind of like the situation for most professional sound men - and the resultant loss was entirely predictable. The same prediction can be made for users of iPods and those ‘little’ earbuds, which have very little bass response. Users tend to turn them up and the resultant volume is higher than that permitted by OSHA in factories and other noisy environments. Accordingly, a few years down the line, there will be even more folks with serious hearing loss than now. (Invest in hearing aid companies.) The New York Times reports on a study of iPod users done in England which makes exactly the same warning.
Now, I understand that this kind of warning will be heeded by roughly zero percent of iPod users, but my years on the planet have taught me that it’s necessary to warn folks, even when you know they won’t pay any attention at the time. (e.g., warnings to quit smoking, lose weight, exercise more.) They will remember them later, however, after the damage is mostly done. If they come back to you and ask why you didn’t warn them, you can just smile and write them a note (or sign in ASL), telling them that you did.