bilby
Fair dinkum thinkum
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Thanks for the link.http://www.atsjournals.org/doi/abs/10.1164/arrd.1987.135.1.209
Marijuana smoke is about equally harmful to lungs as tobacco smoke.
Inhaling smoke of any kind is bad for lungs. Even inhaling chemically inert fine particulate dust is bad for lungs; and neither marijuana nor tobacco smokes are chemically inert.
There are some adverse affects in tobacco smokers that are less common in marijuana smokers; and some adverse effects in marijuana smokers that are less common in tobacco smokers. But overall, both groups of smokers (and smokers of both substances) have approximately equal levels of lung impairment when compared with non-smokers.
Actually, the citation you are giving is almost 30 years out of date. Dr. Tashkin has spent a long career comparing the pulmonary of effects of smoked marijuana and smoked tobacco. With respect to lung cancer and chronic obstructive pulmonary disease, I believe his more recent conclusion is that even heavy marijuana smoking poses far lower risks than tobacco smoking.
Indeed, which is exactly the position I take on the issue.Of course, smoking *anything* has deleterious health consequences for your lungs. Epidemiologically though, we have not been able to establish a correlation with marijuana smoking the more "grave" consequences we see with tobacco smokers.
Yes, tobacco is pretty nasty stuff. But that's no reason to prohibit its use by informed adults - it's up to them to decide whether the benefits outweigh the risks.I think there are many ways to explain this. At the very least, I think it is obvious that tobacco posses a particular combination of properties that make it a particularly potent carcinogen. Indeed, even chewing tobacco will cause neoplasms in the mouth and throat.
Quite. The reality certainly lies in the middle ground between the crazy people who think one puff will turn people into the reincarnation of the devil, and those who think that the world would be saved if only we all smoked marijuana all day (and used hemp for clothing, and as fuel, and as a miracle cure for all diseases).I think marijuana has a combinations of properties that make it a less potent carcinogen. Of course, any smoke contains carcinogens. However, cannabiniods have been found to posses antineoplastic properties. Unfortunately, the downright stupid classification of marijuana as Schedule I in the us has blocked off a significant portions of biomedical researchers from even considering compounds derived from marijuana as potentially therapeutic. However, I do know that some European teams, particularly in Spain and Italy, have followed that thread for some time now. There were a few people publishing about gliomas and cannabiniods a while back. Also, I remember something about about cannabiniods acting as anti-angiogenics.
That is not to say it's some miracle drug directly from the Gods of the Earth, as some potheads would want you to believe.
Insane though both of these extreme positions are, there are, in my experience, quite a lot of people in one or other of these camps.
Finally, it is difficult to compare marijuana smoking and tobacco smoking. Heavy tobacco smokers can burn and inhale 20 grams a day or more. The proportion of marijuana smokers who are that extreme are at the very tail end and comprise a small, unrepresentative sample. It may just be difficult to see the effects. As marijuana has become more potent, people smoke less and less. Even a "daily" smoker might only be smoking a small fraction of what a daily tobacco smoker consumes.
At any rate, I think it is great that marijuana use has moved more towards vaporization and so-called edibles, especially where its use has become tolerated or outright legalized. Indeed, I saw "vaping" become popular in the marijuana smoking community long before it caught on with tobacco smokers. I'm living in the most tolerant city in the US when it comes to most things, and definitely marijuana. I can have marijuana delivered to me using an app I saw advertised on a billboard. I think before long, marijuana legalization will have been invented by the US, and become as American as apple pie. Despite us having spent the last century making it's prohibition throughout the world a foreign policy, and using our diplomatic weight to combat any experimentation with tolerance. Nevertheless, the examples of the Netherlands, Portugal, Spain and others have shown it is likely the route to take if one truly cares about the negative health effects of drug abuse.
Yes, I think you are probably right; The US federal position, which gets expressed in diplomatic relations with other countries, is one of strict prohibition, while the individual states are in many cases much more sensible. All the evidence supports full legalisation as the least harmful option, even for hard drugs (ideally combined with assistance for addicts who want to quit, and good public access to information to help users make informed choices).
Of course that doesn't make the 'cannabis cures everything' crowd any less wrong.