Learn About Weed With Dr. Sanjay Gupta

CNN correspondent and neurosurgeon Sanjay Gupta explored the medical benefits of marijuana in his new documentary "WEED," and apologized for misleading the public about cannabis for years.

Dr. Gupta found that some types of marijuana have transformed the lives of patients with severe seizure disorders and other ailments.

We recently interviewed Dr. Gupta about his documentary and findings about weed at CNN's New York headquarters.

In this segment, Dr. Gupta elaborates on the two main chemical compounds found in cannabis - THC (tetrahydrocannabinol) and CBD (cannabidiol), and their effects on marijuana users.

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