No, Macy Gray does not have autism, although she does shows for
autism causes.
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The mutation that causes Autism is a rare genetic mutation.
There are three different genes that are linked to the cause of
different disorders on the Autism Spectrum.
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Autism is inborn. They haven't figure out what causes autism
yet.
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There are no "real" causes of autism yet, but there are
theories. Autism is a disease rarely found in newborn babies that
disable the child's language development and they often have
trouble communicating.
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Autism is a neurological difference and like any other variation
in humankind it comes as a result of genetics. Autism is caused by
various genes or genetic mutations, but past that we can't be
certain what causes a person to be Autistic.