[thedoc (OP)]

Why didn't humans evolve through allergies?
Asked by Manal Javid, via facebook


                                       

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[thedoc (OP)]

Rick -   Well, we evolved to tune our immune system in the presence of different infectious organisms and in a way, allergies have resulted because we’re no longer in the environment in which we evolved.  So I suppose, because allergies are so recent and human population is no longer being selected by natural selection, I don't think we are going to evolve through allergies.