Оригинал
AA's may have a Chance of regaining their sense of smell later in life. It is a possibility. Some AA's can smell still but only strong scents.
CA's is usually due to the polyp in the nose being swollen or in some cases the nose just does not perform Its function as it should. I have heard of nose Operations beginning to be performed on CA's in hope for a CA to experience smells for the first time ever.