Ron Hoggan <[log in to unmask]> wrote:    a genetic trait that enjoyed a selective
advantage in pre-agricultural times and is now at a selective disadvantage?

  a genetic interaction with an immune reaction to a viral
infection. 
   
  a genetically coded reaction that is "switched on"
either by elevated blood glucose or the consequent reduction in glucagon,
nocturnal growth hormone, insulin-like growth hormone, etc. secretion due to
excessive insulin. 
   
  the compound impact of genetic
predisposition with increasing gluten content and increased individual,
daily consumption. 
   
  a genetic predisposition combined with a
nutrient deficiency such as the situation with pellagra. 

Best Wishes, 
Ron

   
  Thanks Ron.  Which came first, the chicken or the egg?  Sounds like it's an individual malady but there is an answer somewhere that links all of these things to a common denominator.  
   
  A believer in nutritioneering......Oliva


"The human mind, once stretched by a new idea, never regains its original dimensions." 
  Oliver W.Holmes