The following report is from the March 2002 issue of Sexual Intelligence by Marty Klein, PhD.

New Reason to Swallow

It's almost too good to be true. Now there are health benefits to fellatio--at least for couples who eventually want to conceive.

Australian scientists have discovered that semen contains a substance which helps persuade a mother's immune system to accept sperm. Regular exposure to this enzyme, especially orally, may thus help a woman conceive and also make her pregnancy safer and more successful.

University of Adelaide Professor Gustaaf Dekker describes this dramatic example of the body's evolutionary logic: "If there's repeated exposure to that signal," he says, "then eventually when the woman conceives, her cells will say, 'we know that guy, he's been around a long time, we'll allow the pregnancy to continue.'"

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