An orphan disease is defined as a condition that affects fewer than 200,000 people nationwide. This includes diseases as familiar as cystic fibrosis, Lou Gehrig's disease, and Tourette's syndrome, and as unfamiliar as Hamburger disease, Job syndrome, and acromegaly, or gigantism..
Mozart started composing at age 3. In psychology research literature, the term child prodigy is defined as person under the age of ten who produces meaningful output in some domain to the level of an adult expert performer. Child prodigies are rare, and in some domains there are no child prodigies at all.n psychology research literature, the term child prodigy is defined as person under the age of ten who produces meaningful output in some domain to the level of an adult expert performer.
A flat profile of scores in the 14 to 16 range [indicates] that the child is gifted intellectually and may profit from instruction that capitalizes on the child's exceptional intellectual skills.. -- Assessment of Children WISC-IV and WPPSI-III Supplement by Jerome M. Sattler and Ron Dumont.