After decades of listening to the lawn mower, loud music, city traffic or noisy machinery, the human ear often begins to falter. High-pitched sounds usually fade first – birds chirping, telephones ringing, even women’s voices. And age-related...
After decades of listening to the lawn mower, loud music, city traffic or noisy machinery, the human ear often begins to falter. High-pitched sounds usually fade first – birds chirping, telephones ringing, even women’s voices. And age-related...