More than half of all U.S. states have legalized cannabis, be it for medical purposes, recreational use, or both. The shelves of cannabis dispensaries offer an ever-widening array of gummies, drinks and joints. Meanwhile, the federal government still considers most types of cannabis illegal. A new report from the National Academies of Sciences, Engineering and Medicine, … [Read more...] about 5 things to know from this week’s big report on cannabis