“Marijuana Use Does Not Raise Lung Cancer Risk”
[Editor’s Note: In keeping with the policies, rules, regulations, voluntary self-flagellations, edicts and Ouija board messages of this website, upper management has instructed me to remind the gentle reader that neither The Cheerful Oncologist nor his staff, minions, roadies, ancestors or anonymous love-letter-writing admirers condone the use of illegal drugs.]
I remember the day as clearly as if it was today. The sun gloated in the pale cream sky as it baked a gaggle of kids lying around the city pool. I was dazzling the girls (or so I thought) with a recap of last night’s episode of “All in the Family,” which was our favorite show as well as a national phenomenom back then. Inevitably our conversation turned to forbidden activities, as it did frequently during our junior high school years, and the topic of marijuana drifted into sight. Only the roughest kids in school were awarded the distinction of being bad-ass pot smokers, which in those days was unquestionably acknowledged as the highest caste in our rigid social system. The rest of us just jabbered about marijuana like a busload of women on an Elderhostel tour. I would be lying if I said we never wondered what the feeling was like to be high. Most of us never got the opportunity to find out, and those who did never really took up the habit, mainly out of fear of breaking the law. We had a vague uneasiness about smoking marijuana, the same feeling one gets when touching a match to charcoal soaked in lighter fluid.
Some of us grew up to be doctors. At least one of us became an oncologist who, among other duties, implored his patients and friends to make healthy choices. One of the choices he advocated was to minimize the risk of getting lung cancer by not smoking cigarettes - or marijuana, which is known to contain the same carcinogens found in tobacco. In fact, most doctors assumed that marijuana smoke was more harmful than tobacco, and it would only be a matter of time before scores of long-term pot smokers would march out of their homes like the zombies in Night of the Living Dead, mortally stricken with lung cancer.
Now this report appears: “In the study, the heaviest smokers were those who had smoked more than 22,000 marijuana cigarettes, or joints. Moderately heavy smokers were those who had smoked between 11,000 and 22,000 joints.
“The heavy marijuana smokers did not have an elevated risk of developing cancer. People who smoked more marijuana did not seem to have a higher risk than those who smoked less or none, the study found.”
We are not just talking about lung cancer:
“Even in those heavy, long-term marijuana users, the risk of head and neck cancers including cancer of the tongue, mouth, throat and esophagus does not seem elevated compared with that in those who did not smoke.”
The cause of this surprising conclusion is still under study, but according to the lead author “tetrahydrocannabinol (THC), an active substance in marijuana smoke, may promote earlier death of aging cells, preventing the injured cells from becoming cancer cells.”
Great Caesar’s Ghost! Where do you suppose this line of research will lead to?
I must emphasize, as do the study authors, that smoking both marijuana and cigarettes increases the risk of getting lung cancer or head and neck cancer, so to you smokers out there who think they can protect themselves by playing an old Cheech and Chong album while toking up, my advice is this:
Enjoy the comedy, but foreswear the coffin nails - and go easy on those cosmic brownies!