The evolutionary theory that says birth-weight and birth-length can partially predict the occurrence of mental disorders later in life, especially during adolescence, has been proved to be correct by researchers from the Copenhagen Centre for Social Evolution and Yale University. The results have been published in the Proceedings of the Royal Society, London B. The study analyzed medical records of 5 million Danish births and their hospital diagnosis for up to 30 years. The study says that opposite risk patterns were observed for autism and schizophrenia which were associated with normal birth size variation. The study shows that above-average-sized babies had higher risk for autism and lower risk for schizophrenia, while the opposite was observed for below-average-sized babies. This study shows that your baby’s birth size does matter, after all!
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Full details of the discovery can be accessed online at http://rspb.royalsocietypublishing.org/content/281/1794/20140604.full