How Dangerous Is Secondhand Marijuana Smoke?

Smoking marijuana is typically thought of as not that bad, especially compared to the hazards of drinking. But is secondhand smoke from marijuana more dangerous than people think? Or does it damage your lungs, heart, and blood vessels in the same ways as cigarette smoke? Find out with John and Sandra!

What do you think of this study? Will it deter you from smoking marijuana, or spending time around those who do? Let us know in the comments!

Find out more here: http://cbsn.ws/1uGpXFt

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