Pregnant women get morning sickness to protect fetus

Morning sickness. It's the bane of many of a pregnancy. And many a future mother wonders at the apparently unnecessary suffering. But, it turns out, there's meaning to the misery. Two evolutionary biologists report that morning sickness protects both the pregnant woman and the developing embryo just when the fetus is most vulnerable.

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<p><a href="http://www.physorg.com/news134143992.html">Pregnant women get morning sickness to protect fetus</a></p> <p>Morning sickness. It's the bane of many of a pregnancy. And many a future mother wonders at the apparently unnecessary suffering. But, it turns out, there's meaning to the misery. Two evolutionary biologists report that morning sickness protects both the pregnant woman and the developing embryo just when the fetus is most vulnerable.</p>