Live rock concerts are the hardest on ears, reports Christian Meyer- Bisch, an ear specialist in the city of Nancy in France. Investigating hazards to hearing, from exposure to high noise at a live concert, Mayer- Bisch reports that people can develop symptoms of temporary hearing loss. These include ringing in the ears, called tinnitus, and deadeQed hearing like having cotton wool in your ears. After an extensive study conducted on 1,364 people between the ages of 14 and 40, divided into groups depending on their listening habits, the regular concertgoers showed the highest incidence of damage to hearing.