A new study measured the quality of life of more than 3,100 patients who were treated with various forms of medical cannabis, including THC, CBD, and products that combine the two. Most of the participants in the study reported using cannabis for chronic non-cancer pain while a smaller number used the drug for cancer pain, insomnia, and anxiety. In general, most patients reported improvements in quality of life in all areas, however, some of the changes either returned to baseline over the course of the study or were not clinically important. Many people with cancer-related pain, chronic pain, or other health conditions turn to medical cannabis to relieve their symptoms. Now recent research has found that cannabis products may also improve their overall quality of life. This can happen even without changes in pain levels, said Dr. Wei Du, co-director of Drexel University’s Medical Cannabis Research Center in Philadelphia. For example, when asked about their pain level, patients may say...