• Question: why do some people have hay fever and some do not?

    Asked by melisa13 to Susana, Sam, Ed, Dave, Ben on 24 Jun 2013.
    • Photo: Sam Horrell

      Sam Horrell answered on 24 Jun 2013:

      Hay fever is an allergic response. When someone with hayfever breats in on a day with a high pollen count their body thinks the pollen is a dangerous molecule like a bacteria or a virus so they attak them by overgroducing an anitbody called immunoglobulin E. So people that don’t get hayfever don’t get this over reaction to non-harmful foreign material.

    • Photo: David Briggs

      David Briggs answered on 24 Jun 2013:

      Either because of their genetic makeup, or perhaps because they became highly sensitive to pollen as a child,

      I’ve got hay fever and it’s really annoying!

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