What are degenerative developmental disabilities?

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  1. The causes of degenerative developmental disabilities vary. They may be caused by metabolic disorders. They may be caused by genetic defects. Rett syndrome, one degenerative developmental disability, is caused by a gene mutation that causes problems in brain development.

    The causes of degenerative developmental disabilities vary. They may be caused by metabolic disorders. They may be caused by genetic defects. Rett syndrome, one degenerative developmental disability, is caused by a gene mutation that causes problems... More