Howcast - Learn what the research says about medical marijuana in this Howcast video.

Howcast - Learn if marijuana cures glaucoma in this Howcast video.

Howcast - Learn who should not use medical marijuana in this Howcast video.

Howcast - Learn about marijuana use and gastrointestinal (GI) disorders in this Howcast video.

Howcast - Learn why veterans are sometimes approved for medical marijuana cards in this Howcast video.

Howcast - Learn how marijuana can help patients going through chemotherapy in this Howcast video.

Howcast - Learn about marijuana use and cancer in this Howcast video.

Howcast - Learn how to talk to your doctor about medical marijuana in this Howcast video.

Howcast - Learn if marijuana is legal in Amsterdam or anywhere else outside the United States in this Howcast video.

Howcast - Learn if marijuana is a gateway drug in this Howcast video.

Howcast - Find out if marijuana use can give you cancer in this Howcast video.

Howcast - Learn how marijuana use affects thought processes and memory in this Howcast video.

Howcast - Learn about marijuana compounds THC and CBD in this Howcast video.

Howcast - Learn about spice, also known as synthetic marijuana, in this Howcast video.

Howcast - Learn the difference between marijuana and medical marijuana in this Howcast video.

Howcast - Learn about Sunil Aggarwal, one of Howcast's marijuana experts, in this video.

Howcast - Learn about the origins of the marijuana plant in this Howcast video.

Howcast - Learn about the history of marijuana use in Western Medicine in this Howcast video.

Howcast - Learn why the federal government is the main opposition to legalizing marijuana in this Howcast video.

Howcast - Learn the arguments against medical marijuana in this Howcast video.

Howcast - Learn about the stigma and discrimination that medical marijuana patients can experience in this Howcast video.

Howcast - Learn about marijuana use and its effects on mental illness in this Howcast video.

Howcast - Learn about marijuana's use in helping to relieve symptoms of Multiple Sclerosis in this Howcast video.

Howcast - Find out if you can overdose on marijuana in this Howcast video.