regardless of the affects of cannibinoids there are plenty of studies that link people that take in small air particles consistently such as coal, silicon, and hay to causing COPD.
I dont know the studies of THC and the effects on the lungs but I am speaking for the smoke
This man makes sense. I am trying to tell you smoking anything is bad, even marijuana, sorry about Grandmas's studies but science has ccome a long way since 1974. SMOKING IS BAD FOR YOU. even herb. If you have asthma you just are not doing the things you should be doing since you live with COPD. Period, bottom line, end of story. Any doctor worth his weight in salt is going to tell you that because they've worked in hospitals and seen it.
First off, let me preface all of this by saying I'm discussing purely marijuana SMOKE and it's effect on the RESPIRATORY SYSTEM. I've never seen anythign convincing me fully that marijuana is bad for you psychologically if use in moderation and things like that. I'm just saying that based on what I've read and seen, smoking it is unhealthy. ESPECIALLY FOR AN ASTHMA PATIENT.
Yoshi, most of the studies you show are specifically discussing the effects of MARIJUANA and not the SMOKE. The SMOKE is the problem. Since you like studies from the 60s and 70s, here's one from the late 80s at least that was a pretty gone one:
http://www.nejm.org/doi/pdf/10.1056/NEJM198802113180603
Another one from the 90s:
http://www.ncbi.nlm.nih.gov/pmc/articles/pmc1002405/
And one from much more recently that suggests perhaps light use is actually beneficial if anything, but just a little too much and the pulmonary effects became negative fairly quickly:
http://jama.jamanetwork.com/article.aspx?articleid=1104848
Here's two more post 2010 to look at:
http://www.expert-reviews.com/doi/abs/10.1586/ers.10.87?journalCode=ers
http://www.expert-reviews.com/doi/pdf/10.1586/ers.11.40
That's just population studies, I left out specific case studies because I felt they were irrelevant to the conversation at hand. And that's 5 whole minutes of searching google scholar, lol. Give me a week and I could provide pages and pages of peer reviewed population and case studies illustrating negative effects of marijuana smoke and the effects it has on your airways. I mean I'm not saying "its all bad no benefit at all!" As I've said before, some studies suggest that in small doses it's a bronchodilator, which would theoretically help you. But we can aerosolize respiratory medicines that work so much better and faster that using a small amount of marijuana to bronchodilate is ineffective considering the outside health risks.
Use common sense, people. It produces thick, sticky, nasty tar in any bowl you've ever smoked. You really think this isn't affecting your internal airways (which as they get down to the areas that matter, get microscopic in size)?
In the end, do what you want. You wanna smoke away, go ahead. Roll the dice, maybe you'll be fine. I mean I'm not condemning anyone. I've smoked before. I eat cheeseburgers and drink beer too. I'm no pillar of health. If you ask me what I think about smoking it specifically, especially for an asthma patient, hell I can't recommend smoking at all in any capacity. I'm not asking anyone to believe one side or the other, but just looking at it objective it's fairly easy to see here that it's an unnecessary risk at the very least. Vaping MAYBE, but even then I wouldn't use any drug that my physician hadn't recommended or prescribed to me if I had an illness as serious as asthma. The reason you go to a real doctor and you don't just treat yourself with WebMD and pot forums is because your doctor knows YOU and YOUR illness better than anyone on here or elsewhere could. Just talk your doctor he'll shoot ya straight. Don't listen to anything anyone has to say about healthcare on the internet ever.