Firstly, Medical cannabis or medical marijuana (MMJ), is cannabis that are prescribe by physicians for their patients. Also, the use of cannabis as medicine has not been rigorously test due to production and governmental restrictions. Thus resulting in limited clinical research to define the safety and efficacy of using cannabis. That is to treat diseases. Lastly, preliminary evidence suggests that cannabis can reduce nausea and vomiting. Hence to improve appetite in people with AIDS reduces chronic pain. Also musles spasm and treats severe forms of epilepsy.