Not only physical but mental health of a pregnant woman also posses a great impact on the baby.  According to a new study has found that stress during pregnancy is not good for the unborn child and remaining stress-free during this period helps the brain development of the baby.

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As per the study presented at a meeting of the Cognitive Neuroscience Society in Boston, Massachusetts, a mother's stress during pregnancy changes neural connectivity in the brain of her unborn child. Researchers Moriah Thomason of Wayne State University in the US said,"We have demonstrated what has long been theorised, but not yet observed in a human, which is that the stress of a mother during her pregnancy is reflected in connectional properties of her child's developing brain."'

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Thomason explained, research in newborns and older children to understand prenatal influences has been confounded by the postnatal environment,

The reseachers found that mothers reporting high stress had foetuses with a reduced efficiency in how their neural functional systems are organised. The researchers found that the cerebellum played a central role in the observed effects, suggesting it may be especially vulnerable to the effects of early life stress or prenatal.