And, really, this is not that 'off topic'...check it out --
asthma+giftedness ---
Misdiagnosis And Dual Diagnoses Of Gifted Children And Adults: Adhd, Bipolar ...
By James T. Webb
Chapter 8

http://books.google.com/books?id=NQ...asthma%20linked%20to%20high%20iq&f=false