The use of medical marijuana has been a valuable resource in the treatment of various conditions. But for many, the stigma and misinformation surrounding the medical or recreational use of cannabis is a deterrent in trying it for themselves.Medical marijuana uses the marijuana plant or chemicals in it to treat diseases or conditions. It's basically the same product as recreational marijuana, but it's taken for medical purposes.The marijuana plant contains more than 100 different chemicals called cannabinoids. Each one has a different effect on the body. Delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) are the main chemicals used in medicine. THC also produces the "high" people feel when they smoke marijuana or eat foods containing it.