This is what I am worried about. Too much noise in my life, two kids, a loud little girl, mow lawns in the summer, shoot guns, and wear earplugs for all. Well, the only time I wear them around the kids is when changing diapers for my daughter........thankfully we are over that stage, but she still has a set of lungs.Well, loud music and noise in general can temporarily damage your ears. The more you do that (when your ears feel "full", I don't remember the actual term) it builds up and eventually leads to permanent hearing loss.
You know how when you're in your car you keep turning up the music to compensate, especially if you get on the freeway or drive with windows down? Your ears get used to the sound and you turn it up more to hear it better. A lot of people do this with earbuds.
Now, when you ride with earbuds in and have music playing, the tendency is to turn it up. You'll really have to resist that urge and instead turn it down.
Besides the aspect of overexposure to loud music, most earbuds aren't designed to block out the noise that earplugs would, so you should find some that do or you'll not be doing yourself a favor later on from the damage wind noise gives you.
Bingo, this is what I need. For mowing, motorcycling etc. I need to block the sound and turn down the volume. I just want some background noise to listen to.I can find earbuds in wal-mart that will reduce ambient sound by 36db, some by 42fb, and the earplugs in the hunting department are 28-36db. If your helmet isn't crazy noisey, the earbuds should work good. I use JVC marshmallows, and I can listen to the music at the same volume that I use when walking around with the iPod.