Marijuana is a drug that creates quite a bit of controversy, in part because it has been illegal in the United States for many years but now is increasingly becoming accepted within the medical community as a treatment for certain medical conditions like glaucoma and cancer.
The debate over the positive and negative sides of marijuana use has sparked much controversy. While several states have legalized the use of marijuana for medical purposes, its use is still restricted in most parts of the United States. In terms of the states that have legalized marijuana for medical condition, most of them require proof of residency.