A new study suggests marijuana use in pregnancy may increase your child's risk for stress and anxiety.
, but you need to know that it may have long-term effects on your child," said senior researcher Yasmin Hurd.
"We can't say that anything in humans is causal because of the complexity and many confounds," she noted. In animal experiments, however, Hurd said they found that the active ingredient in marijuana -- THC -- caused changes in theShe believes, however, that women should be counseled to avoid marijuana during pregnancy as they are now warned to avoid alcohol, because of the harm it can cause.
Children of mothers who used marijuana during pregnancy also had changes in their heart rhythm tied to increased sensitivity to stress.Additionally, analysis of placental tissue of some of the marijuana users revealed changes to genes linked to immunity. This might lead toand less resistance to germs, the researchers said. And the marijuana-related changes in these immune networks predicted higher levels of anxiety in the children, the study found.
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