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Study: Early trauma can lower child's IQ

Maltreatment or even witnessing family violence can cause cognitive harm on par with lead exposure, according to research from the University of Minnesota and Boston Children's Hospital. The study suggests children younger than 2 are the most vulnerable.
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Maltreatment or even witnessing family violence can cause cognitive harm on par with lead exposure, according to research from the University of Minnesota and Boston Children's Hospital. The study suggests children younger than 2 are the most vulnerable.

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