In advance of his upcoming CNN special entitled "Weed," on Wednesday evening Dr. Sanjay Gupta joined "Piers Morgan Live" as part of a discussion on medical marijuana and the legalization of cannabis.

In a shocking revelation, the host offered an enlightening slice of honesty as part of furthering the conversation:

"I tried a bit of cannabis when I was younger," Piers Morgan stated during the live interview.

He then asked his guest to share a bit of personal information himself:

"Have you tried it," he wondered, putting the question to the doctor.

"I have tried it," Gupta declared, before going on to describe his personal reaction. "It was a while ago that I tried this. I didn't particularly care for it, actually. It made me kind of anxious, and it wasn't a very pleasant feeling."

As America's pot debate continues, and on the heels of recreational marijuana having already been approved in both Colorado and Washington, Gupta admits to having recently changed his own opinions, now placing value on the role the drug can play in appropriate situations:

"From a medicinal standpoint, this idea that it can provide something that isn't already provided," he told the host, speaking of the benefits of "weed."

As compared with other vices, Gupta pointed to certain substances, some which are legal, that he feels are significantly more harmful:

"The addiction is possibly real. About nine percent. Put it in context, cocaine is about 20 percent," he explained. "Alcohol has a higher rate of addiction. Smoking, 30 percent, and that leads to far more deaths than marijuana."

Watch the clip for more of Morgan's interview with Dr. Gupta, and for the next edition of "Piers Morgan Live," watch CNN every night at 9. Also, be sure to catch the CNN special "Weed" this Sunday at 8.

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