Health problems and hearing loss from cellphone and iPod use have been heavily debated ever since portable devices became a part of our everyday lives. The thing is, studies showing a correlation between use and hearing loss go back and forth. Sometimes they tell us cell phones cause hearing loss, other times they tell us use right before bed is bad, but otherwise we are OK and occasionally they tell us not to worry. Scientists have noted that cellphone users who were on the phone for 60 or more minutes per day over a yearlong period showed early signs of hearing loss. According to this month's Shape magazine experts believe the problem comes from cellular receivers, which are louder than regular phone handsets. Do you worry about and pay attention to your cell phone's volume?