|For many years the precise reason for morning sickness in pregnant women has eluded doctors. However new research carried out in the US suggests that it may actually protect both mother and unborn child.
Previous theories on the reason for morning sickness proposed that it was either a reaction to the mother and child sharing nutrients or that it assists in healthy pregnancies.
However, biologists and authors of the new study Samuel Flaxman, and Paul Sherman point out that other mammals do not experience the same phenomenon and therefore discount the nutrients sharing theory and many women do not experience morning sickness at all and still give birth to healthy babies so discount the second theory.
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