I don't think this will be taken seriously until some of the long term effects start becoming obvious. Those using mp3 players are bound to lose hearing because as the hearing is dulled, the volume will be turned up, and hearing loss will not seem the cause, until it is pionted out and measured by a doctor. It is likely future users will be warned by results of use. Sometimes where advice is unheard, the message can become clear when shown in people with description of the use that led to the loss. There is no maybe. The sooner users understand the problem the less damage will be done. Hearing is lost because hairs known as 'cilia' line the cochlea, and translate movement caused by sound in...

I don't think this will be taken seriously until some of the long term effects start becoming obvious. Those using mp3 players are bound to lose hearing because as the hearing is dulled, the volume will be turned up, and hearing loss will not seem the cause, until it is pionted out and measured by a doctor. It is likely future users will be warned by results of use. Sometimes where advice is unheard, the message can become clear when shown in people with description of the use that led to the loss. There is no maybe. The sooner users understand the problem the less damage will be done. Hearing is lost because hairs known as 'cilia' line the cochlea, and translate movement caused by sound in the watery fluid around them into information that can be carried by the nerve
High volumes cause vibrations that destroy these hairs. They do not grow back, and continue to be destroyed, until hearing is lost totally. What is significant is the sufferer being generally unaware apart from the need to turn up the volume. Apart from hearing aids, treatments include cochlea transplant, and there is research for treatments using stem cells, hair regeneration, and pharmaceuticals preventing hearing loss.
At the moment hearing loss is not a threat. It is a promise.