When Proposition 215 was passed and the Compassionate User Act (CUA) was made, it made medical marijuana legal in California. Several patients with chronic and debilitating disease see medical marijuana as a drug that can assist them in their battle. The miraculous health benefits in marijuana are currently in research at large. However, there are various established advantages of the drug. The state provide approved list of illnesses which includes cancer, glaucoma, anorexia, AIDS, chronic pain to name a few.The Weird Thing About Chronic Ailment Definition.