The active component of the marijuana plant, cannabinoids, have shown to inhibit tumor growth and kill cancer cells in lab tests 

Medical marijuana contains antispasmodic qualities which relax muscles and has shown to be an effective treatment for seizures. Marijuana oils that are rich in cannabidiol (CBD), are the preferred method for treatment

Patients who suffer from chronic pain caused by diabetes, cancer, MS, HIV, and other diseases have been turning to medical marijuana as a way to treat their pain without the use of addictive pharmaceutical medications