Science & Policy
Scientists finally explain the real reason pregnant women get morning sickness
Summary: Morning sickness isn’t just random misery—it’s a biological defense system shaped by evolution to protect the fetus.
Key points
- Morning sickness isn’t just random misery—it’s a biological defense system shaped by evolution to protect the fetus.
- By linking immune responses to nausea and food aversions, UCLA researchers show these symptoms are signs of a healthy pregnancy.
Morning sickness isn’t just random misery—it’s a biological defense system shaped by evolution to protect the fetus. By linking immune responses to nausea and food aversions, UCLA researchers show these symptoms are signs of a healthy pregnancy.
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