Does weed cause schizophrenia?

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. read more

Marijuana does raise the risk of getting schizophrenia and triggers heart attacks, according to the most significant study on the drug's effects to date. A federal advisory panel admitted cannabis can almost certainly ease chronic pain, and might help some people sleep. read more

Scientists now know that cannabis consumption is not the cause of schizophrenia. However, that doesn’t mean that it isn’t important for those schizophrenia and psychotic disorders to pay close attention to the way in which cannabis affects them. read more