Study Suggests Cannabis Smoke May Lead To Cancer

June 17, 2009

UK (ChattahBox) – A study conducted by the University of Leicester has found that the smoke from marijuana may lead to cancer.

The study has studied the effects on DNA in the use of cannabis, as a way of verifying whether or not marijuana smoke is as harmful as tobacco smoke, or if there is any risk of cancer from inhaling it.

Rajinder Singh, one of the researchers on the project, was quoted on Eureka Alert as saying:

“There have been many studies on the toxicity of tobacco smoke. It is known that tobacco smoke contains 4000 chemicals of which 60 are classed as carcinogens. Cannabis in contrast has not been so well studied. It is less combustible than tobacco and is often mixed with tobacco in use. Cannabis smoke contains 400 compounds including 60 cannabinoids. However, because of its lower combustibility it contains 50% more carcinogenic polycyclic aromatic hydrocarbons including naphthalene, benzanthracene, and benzopyrene, than tobacco smoke.”

It isn’t a surprising finding, as many have been concerned over the effects of cannabis smoke for quite some time, leading many users to switch to vaporizers and other methods for it’s use.

The results of this study have been published in Chemical Research in Toxicology.


7 Responses to “Study Suggests Cannabis Smoke May Lead To Cancer”

  1. Old Man Dotes on June 17th, 2009 11:20 am

    Well, duh! Smoke inhalation is a leading cause of disability for firefighters; if anyone is surprised that smoking *anything* is bad for one’s health, that surprised person is clearly an idiot.

  2. Bud Kine on June 17th, 2009 8:20 pm

    The scientists said that 3-4 marijuana cigarettes PER DAY are equivalent to 20 tobacco cigarettes.

    Who smokes 3-4 joints per day? That is a lot of weed and most users, even daily users, probably smoke less than 1 marijuana cigarette daily. Maybe a person with a very serious disease or a chronic pot-head would smoke that much every day, but most cannabis users smoke way less. Also, marijuana is much more powerful today, requiring the smoker to use substantially less pot to produce the desired effect.

    Smoking marijuana is not the only delivery system into the body. There are machines now, Vaporizers, which heat the herb to a temperature that is just hot enough to release the active, beneficial “cannabinoids” without burning it and releasing the harmful, carcinogenic, DNA altering chemicals. Cannabis can also be cooked into foods and eaten or prepared into concentrated oil and used as a tincture. Cannabis can be taken safely by other means than smoking.

    Anything taken in excess can be detrimental to the body. Too much wine or beer, too much fat, too much sugar, too much aspirin, can all be harmful if “abused”, but are beneficial and actually healthy when used in moderation.

    If cannabis is smoked in moderation, how much does that reduce the risk?

  3. MaryJane Cannabian on June 18th, 2009 3:54 pm

    If you Googled, you would have read that this “Study” has already been shot down. This is prohibitionist propaganda at it’s best. Read “Fox News Infected With “Reefer Madness”
    & you will read the truth about this study. The sad thing is, you just reposted without doing any investigation for yourselves. Now you are just as misinforming as “FAUX” News.

    In 2006, Tashkin led the largest population case-control study (yes, Dr. Tashkin actually performed research on HUMANS, not ‘CALF THYMUS DNA’) ever to assess the use of marijuana and lung cancer risk. The study, which included more than 2,200 subjects (1,212 cases and 1,040 controls) “What we found instead was no association (between marijuana smoking and cancer) and even a suggestion of some protective (anti-cancer) effect.”
    Dr. Tashkin has performed US-government sponsored studies of marijuana & lung function for over 30 yrs. and is considered to be the United States’ — if not the world’s — foremost expert on Cannabis.

  4. charles grodin on June 19th, 2009 2:16 pm

    what is the point of these so called “studies”? to actually inform people of a potential danger or just scare them into not smoking? we know for a fact tobacco is deadly, yet it’s never been made illegal.

    i’ll roll one while the propaganda machine rolls on by.

  5. olivia on June 19th, 2009 2:23 pm

    Charles – If there is a risk there is no point in ignoring it. If it is debunked, fair enough, but there should be a clear study of the facts to back legalization. If it does potentially lead to cancer, so what? So do cigarettes, and they are legal, as you pointed out.

    It doesn’t necessarily make it propaganda if it turns out to have any basis of fact to the link.

  6. Lee Hemmi on June 23rd, 2009 3:51 am

    Smoking anything will cause cancer… Just more propaganda. Most regular users have given up smoking…they VAPE!!!

    The crap the FDA allows in our food is much more dangerous.

    I cant believe I’m even responding to this mindless dribble excuse for news.

  7. olivia on June 23rd, 2009 12:01 pm

    Lee: That is the POINT OF THE STUDY! To show that the idea that the smoke itself isn’t harmful is potentially flawed. It doesn’t rule it out for legalization, don’t be an idiot.

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