Enjoying music from your iPod, Mp3 or other portable music players can strain your ears. Hearing loss caused by music or noise in general happens very slowly over time which is why it is so important to tone down your music.
We only have one set of ears - there are no spare parts. An iPod's maximum volume is more than 10 times as loud as the recommended listening setting, and the damage caused by prolonged listening is irreversible.
For peace of mind have your hearing checked
to make sure it has not already been affected.