How can listening to music for a long period of time regardless of volume be damaging to our ears? I'm not sure about you but my ears hear things continually, even when I sleep. What's different about music? Do you mean to say that listening to headphones for long periods is damaging? Do you have a source because that seems like an strange claim.
>The idea is to minimize unsafe listening practices, which depend on two factors: how long you listen and how loud the sound is. The sound of a typical conversation is 60 decibels, which won’t cause any hearing problems. But an idling bulldozer is about 85 decibels, which can cause permanent damage after eight hours. Sounds like a clap of thunder or even a close vuvuzela clock in at 120 decibels, damaging hearing after just nine seconds.
I phrased my first comment a bit poorly. There is a lower limit to what is damaging, but my point is like the quote says, even volumes which aren't extreme can damage your ear if you expose your ear to that level of sound for an extended period of time.