Prolonged consumption of marijuana doesn’t induce mental problems, according to science
Different histories of marijuana use have revealed that there is no increased severity of generating psychosis. In fact, different brain scans have revealed how a substance found in cannabis plants can help patients with psychotic disorders to decrease the abnormal brain activity that appears in those patients.
It is generally believed that people who use marijuana and suffer from mental health problems have a strong relationship. However, a study indicates that the consumption of this plant does not automatically have to mean that it has caused the mental health problems that the person experiences.
Although this seems to be a logical statement, opponents of cannabis go to great lengths to try to circumvent that fact. Longitudinal data published in the New Zealand Medical Journal went so far as to bury those thoughts. The report made it clear that people with a history of marijuana use do not exhibit more severe symptoms of psychosis than people without a history of regular use.
This was evidenced after a team of New Zealand researchers assessed the relationship between the severity of psychotic symptomatology and cannabis use in a cohort of more than 1200 subjects born in 1977. While cannabis users were more likely to report psychotic symptoms in general, the researchers acknowledged that users were not more likely to report severe symptoms.
They concluded, “Collectively, the results suggest that while those who were regular cannabis users reported a significantly greater number of symptoms than non-users, the symptom profile between the two groups did not differ, showing that there was no evidence of greater ‘severity’ among regular cannabis users.” While people with psychotic illnesses may report greater cannabis use, the studies make it clear that lifetime incidences of marijuana-induced psychosis are relatively rare.