The Truth About Smoking Marijuana and Lung Health 

By  Lanny Swerdlow

One of the major objections to the medicinal use of marijuana is the use of smoking as a delivery system. Based on the fact that smoking tobacco causes deterioration of lung function, these detractors intone that smoking marijuana is just as harmful. So let’s examine the truth about the effects of smoking marijuana and lung health.

Testing that hypothesis is really quite simple—even you can do it. Head over to any hospital and go to the respiratory wing. Locate a nurse and ask how many patients are in the respiratory wing due to their use of tobacco. You will learn that most of the patients in that wing are there for that reason.

Now ask how many patients are there because they only smoked marijuana. Don’t be surprised when the nurse tells you that there is not one patient in a respiratory bed fitting that description. They might even elaborate a bit and say that you are not likely to find a single patient in a hospital bed anywhere just because they use marijuana, but that’s another article. This article is all about the effects of smoking marijuana and lung health.

Those who disparage smoking marijuana—and especially those who ridicule marijuana consumed in any form—would never take the time to do the simple study described above. Of course they would dismiss your hospital study as meaningless, biased and unscientific.

The Effects of Smoking Marijuana and Lung Health: What the Science Says

Much to the naysayers’ chagrin, a new study addressing the relationship between lung function and smoking marijuana was published in the January 2011 edition of one our nation’s most prestigious medical journals: the Journal of the American Medical Association.

Funded by the National Institute of Drug Abuse, the massive 20-year study of 5,115 men and women aged 18 through 30 found that smoking a joint once or twice a week has no detrimental effect on lung function. In fact, the researchers found a slight improvement in lung capacity in the marijuana smokers over those who did not smoke anything.

For people who smoke more than a couple joints a week, the study could find no statistically significant evidence that these people suffered any decrease in lung function compared to people who did not smoke anything, but due to the small number of people in the study who smoked more than a couple joints a week, no statistically supportable conclusion could be made.

These findings mirror earlier studies that produced essentially the same results.

Smoking Marijuana: Does Weed Cause Cancer?

Dr. Donald Taskin, author of an earlier lung function study funded by the National Institute of Drug Abuse, stated in a 2006 interview with me that his study found that there “was no abnormality in the lung function of heavy smokers of marijuana, but there were abnormalities in the lung function of smokers of tobacco only.”

Separate studies published in peer-reviewed medical journals undertaken by researchers at UCLA, the University of British Columbia and Yale University all reported that long-term, habitual marijuana use was not associated with a decline in lung function compared to non-smokers. Even though the JAMA study got significant media attention, it is nothing new under the sun.

It is interesting to note that in all the media stories about the JAMA article, there were a multitude of caveats and warning intoned by researchers not to consider cannabis safe just because they found it was. Mumblings about wheezing, chronic obstructive pulmonary disease (COPD) and cancer were given prominent space even though there is not one scientific study that shows any correlation between these ailments and marijuana use.

So what does weed do to your lungs?

When it comes to the effects of smoking marijuana and lung health, think about it for a moment.  If marijuana caused lung damage, cancer or insanity, we wouldn’t need scientific studies costing millions of dollars. These horrors would be in plain sight in hospital beds across the nations like we see so readily with cigarette and alcohol consumption.

As ruled by DEA Administrative Judge Francis Young after an exhaustive two-year investigation, “marijuana in its natural form is one of the safest therapeutically active substances known to man.”

The sooner our country gets over its depraved, disabling and debilitating reefer madness mentality, the sooner cannabis will once again, without damaging our lungs, improve our nation’s health by reducing our need for prescription pharmaceuticals and providing a viable alternative to alcohol.

how long to hold a marijuana hit

More Important Info About Smoking Marijuana:

marijuana smoking and lung health

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This post was originally published in 2017.

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  • Smoking a joint use to be the highlight of the day and now I can’t smoke it. But I sure have lots of memories and good times from it. So I would say to thows who can participate in smoking a good joint do so And enjoy. God put it on earth for us to use or it wouldn’t be here you can believe that.

    • I couldn’t agree more Debbie,I mean like the article said ,in it’s true original form,nothing is harmful about it,but thy are taking it and destroying it by putting mankind things on it in it and calling it safe,hmmmmmm

      • Thank you for that statement. Those poor souls out there that think marijuana is still something to be afraid of. I’ve been smoking it for 47 years – albeit, off and on but still call myself a smoker. I also still smoke cigarettes, and have trouble with them, can’t seem to quit. Sorry, went of course. I’m also up in years and have many ailments that smoking marijuana makes it easier for me to do many of the things I wouldn’t be able to do without it and most of the medication doctors prescribed for me I’m not taking anymore because the marijuana is doing the work they used to. Here’s one for you, Marijuana helps me sleep better than Melatonin.

  • I vape THC/CBD mix for my severe, debilitating autoimmune diseases as I have a few. I have ankelosing spondylitis, most likely MS, fibromyalgia, and most likely pots. I have hydrocodone for the pain but the Dr will not give me enough to cover me through the night. My body metabolises it in 4 hours. Most people say 6 to 8 hours. So I also eat indica edibles at night to help me sleep and relax all night. Otherwise, I do not sleep. I vape it during the day to make up for the pain my medicine won’t cover. Together, they help me more as a team. Alone neither of them fully help by itself.

  • I was diagnosed with Emphysema a few months back…..I was a tobacco user for 30 years….I do not smoke tobacco now & haven’t in years……I do smoke Cannabis for Complex PTSD ….I’ve been concerned even though I am mild stage of Emphysema. This article is interesting.

  • People in this world are too narrow. Minded to understand marijuana is big help for aladda symptoms in sicknesses. So let marijuana be in a smoke some more

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