We always recommend vaporizing over smoking cannabis, but why? Vaporization as a vehicle is better for your health than smoking because it heats the cannabis to a point where cannabinoid vapors are formed, but not to the point of combustion. Without combustion, there is no smoke, and without smoke, there is no increased carbon monoxide exhaled by the lungs. In this way, a patient can reap the medical benefits of inhaling medical marijuana rapidly without the risk of damage to the lungs.
For a short overview of the study, visit the Daily Chronic: http://bit.ly/1LG3LTC
To see the full text of the study, visit the National Library of Medicine: http://1.usa.gov/1UddPHj