|
Noise levels of common sounds What is the noise level of whispering, a chainsaw or rock music? |  | Decibel damage Studies show that noise heightens stress levels and irritation, but how much noise can the ear tolerate before actual damage is caused? |  | MP3 users risk hearing damage Millions listen to music on MP3 players on a daily basis, but the popular personal stereos cause hearing damage in high numbers of listeners, especially among young people. |  | The end of deafness? Imagine a world where deaf children, through the help of technology, can join their hearing friends in the classroom and chat with ease. |  | An epidemic of deafness is spreading Only one in every five South Africans who have hearing loss seek any help. And it takes them seven years to do it. You could be shutting yourself off from the world. |
|
|
|
|