Performance on tests also influenced by pollen count in the air
  on the day of testing for people with sinus trouble. Going
  hardline on the nature/nurture debate is ridiculous. == For
  every nature (genes) study, there's
  context/environment/parenting/society (nurture) study.... To put
  it bluntly, their dicks are the same length and I wish people
  would stop pulling down everybody's pants and checking. It's
  both. Nobody has ever been raised in a vacuum to find out
  otherwise. ==