We’re all being conned. As legalization of marijuana is being pushed forward in the US, we are discovering how little we really know about the drug, and the information we do have is not widely publicized:
Despite being a substance that targets the brain, if and how long-term cannabis use alters brain structure and function remain unknown. There are some known adverse effects. It acutely impairs mental functions and may exacerbate depression, bipolar disorder, anxiety, post-traumatic stress disorder and use of other substances. Whether it is more harmful than substances such as alcohol or nicotine is still undetermined. On the plus side, there is conclusive evidence that cannabis provides relief from symptoms related to chemotherapy and multiple sclerosis. Other potential benefits remain unknown.