A person who is deaf either has trouble hearing or cannot hear at all. Deafness can occur in one ear or in both ears. There are a number of reasons why people are deaf. Parents can pass down genes that cause deafness. Diseases and head injuries can also cause hearing loss.
Deaf people can still communicate. Many deaf people can read lips. They can also their hands to make signs for letters, words, and ideas. This is known as sign language. Not being able to hear is a way of life for many people. It is important to understand that being deaf does not stop people from enjoying life and having a great job.
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