The National Academies of Science, Engineering and Medicine has released a whopping 400-page study on the clinical benefits of marijuana wherein they support almost 100 conclusions. The report features information from 10,000 scientific studies and notes many positive effects, including cannabinoids’ impact on treating chronic pain. It also states that smoking marijuana is not linked to cancers that arise from smoking tobacco products (though respiratory ailments may arise). The study also denies many other negative claims (like the idea of weed being a gateway drugs) but does make clear that mental issues including anxiety and depression can be side-effects. Read more at Ars Technica.