Studies have shown that there are possible benefits medical cannabis can have on cancer symptoms and treatment side effects. This includes alleviating nausea and vomiting for patients undergoing chemotherapy and assisting with cancer-related pain by cannabinoid receptors in the brain and other parts of the body. Nerve pain as a result of chemotherapy or other cancer treatments may also be effectively treated by medicinal cannabis. There are some studies that show medicinal cannabis may also help improve appetite for people with cancer.