Using antidepressants in pregnancy may affects fetus mental development

Latest research shows that there is an increased risk involved in using antidepressants during pregnancy, children born to mothers who were on antidepressants during pregnancy may develop psychological disorder later in life.

Researchers divided children into four groups: the children in group 1 had not been exposed to antidepressants in the womb. In group 2, the mothers had been taking antidepressants before pregnancy, but not during.

In group 3, the mothers were using antidepressants both before and during the pregnancy. Group 4 consisted of children, whose mothers were new users of antidepressants and had started taking the medication during the pregnancy.

The result of the study showed an increased number of children with psychiatric disorders in the group in which the mothers had been using antidepressants during their pregnancy. Psychiatric disorders are hereditary
being exposed to antidepressants in the womb can increase the risk.
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Use of marijuana is associated with psychosis

 Psychosis is a severe mental disorder that affects thought and emotions which leads to impaired contact with external reality.

Ingredients in marijuana have opposite effects on human brain, tetrahydrocannabinol THC, increases the brain processes that can lead to symptoms of psychosis.

Marijuana users may experience psychosis because THC interferes with the brain's ability to distinguish between stimuli that are important, and those that are not.

Psychotic symptoms have been linked to abnormal salience attribution, meaning that the brain has difficulty telling the difference between stimuli that are important and those that are not.

Functional magnetic resonance imaging (fMRI) scans was used to observe participants brains after they took pills containing THC. The images showed changes in the areas of the brain that linked to symptoms of psychosis.

Taking THC increased the activity in the prefrontal cortex, but lower activity in the striatum because THC alters the brain's levels of the neurotransmitter dopamine.
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