Allergy causes

Pietr Hitzig, M.D. fenphen at
Wed Apr 23 20:19:28 EST 1997

Jenny Search wrote:

  Could anyone tell me theories about WHY the prevalence of allergies
  increased. I am especially interested to know people's views about
  1) air
  pollution and chemicals 2) House dust mite allergies and 3) Reduced
  responses to bacterial infections causing more active Th2 responses.

  I will be very grateful for anybody's opinions

 The increasing chronic inescapable stress results in decreased dopamine
levels. The decrease of DA, a potent TH1 agonist and Th2 antagonist,
increases the TH2 cytokines.


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