I would say that this child may need iodine drops as it may be deficient in this or perhaps a synthroid type medication. Also, it may be wise for such a child to run on a treadmill about 3x per week as this raises the metabolic rate since it is cardiovascular activity.
Selective breeding is something only ascended organisms can adapt to. Us humans use selective breeding. Animals without complex language, artistic capabilities, etc, are unable to adapt to C.
