Research/References

The National Center for Health Statistics estimates that 28 million Americans (about 10% of the population) have some degree of hearing loss. About 2 million of these 28 million people are classified as deaf (they can’t hear everyday sounds or speech even with a hearing aid). Only about 10% of these 2 million people were born deaf. The other 90% became deaf later in life. Approximately 4,000 people are diagnosed with sudden deafness each year in the U.S. The natural language of around 500,000 deaf people in the US and Canada is American Sign Language (ASL).

Fingerspelling is an important piece of American Sign Language and often the first set of gestures individuals practice when learning sign language. Fingerspelling makes up to 9% of casual signing in ASL.

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