And another story--

My father is PG. His younger brother was never considered as bright, and in fact had what we would identify today as dyslexia. And, you guessed it, the younger brother had numerous health problems as a young child--repeated ear infections (at a time when there were no antibiotics), tonsillitis with eventual tonsillectomy at the age of 4, that sort of thing--while my father was healthy as a horse.

You'd think the mainstream medical community would get a clue at some point.