Good news for people who’ve worried that smoking too much marijuana (cannabis) — especially as a teenager — might lead to some dramatic problems in the future, even schizophrenia.
New research from Harvard Medical School, in a comparison between families with a history of schizophrenia and those without, finds little support for marijuana use as a cause of schizophrenia.
“The results of the current study suggest that having an increased familial morbid risk for schizophrenia may be the underlying basis for schizophrenia in cannabis users and not cannabis use by itself,” note the researchers.
The new study is the first family study that, according to the researchers, “examines both non-psychotic cannabis users and non-cannabis user controls as two additional independent samples, enabling the examination of whether the risk for schizophrenia is increased in family members of cannabis users who develop schizophrenia compared with cannabis users who do not and also whether that morbid risk is similar or different from that in family members of schizophrenia patients who never used cannabis.”
By John M. Grohol, Psy.D.
Read the full story at psychcentral.com