What are the risks of using marijuana while pregnant? According to a new study published in JAMA Pediatrics, children whose mothers used marijuana after the fifth or sixth week following conception are in danger of developing mental health problems in early youth.

The study looked at data from over 10,000 children aged 11 and 12 who were exposed to marijuana in utero. The alarming results suggested that those children were more prone to develop disorders such as ADHD, aggressive behavior, conduct disorder and rule-breaking behavior.

“The take-home message from this study is that there is some …

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