The only real known issues it can cause are the cilia going limp which allows for acute infection more easily. Conversely people who smoke cannabis tend to have a much higher lung specific capacity.
Yin/yang. It's not a coincidence that guy above appears to be a non smoker despite having smoked 30 years or so when xrays are taken. Not really genetics either, just the nature of this plant.
Most of the shit that makes nicotine truly horrible stems from additives and how it's grown as well. Although it will likely always cause cancer, as cannabis has specific anti cancer compounds, otherwise it would also probably lead to increased rates of cancer. It also has anti inflammatory properties which likely help mitigate other possible issues as well. I haven't seen a good study done on tobacco smokers that grow it organically though with no additives, it would be interesting to see.
Yes they can become damaged or even paralyzed from smoke inhalation and some other things. From what I've read over the years, smoking cigarettes causes bronchial constriction, thereby sort-of "trapping" more or all of the harmful substances; whereas smoking or vaporizing the THC marijuana causes bronchial dilation, I'd say it's the reason why most people cough, which leads to a greater amount of expectorating (coughing up) debris and irritants i.e. ash, chemicals, resin/tar, etc. So, yes it's sort of in the nature of the plant; I smoke many times throughout the day but I smoke pretty high-quality bud; however I cough up a good bit of stuff, especially if I dab, mostly just clear mucus from dabs though. I simply believe it is my lungs doing their job and the nature of the THC in the plant at work. I had a sputum culture done to see if it was a lung infection, b/c I was coughing up black/charcoal gray specks of stuff in clear mucus and still do but far less often; I suppose it's from smoking bud. I even use hemp twine/wick to avoid smoking any butane or soot from lighters.
Your cilia work in sync with specialized cells that produce mucus to capture and remove impurities from the lungs, in response to the presence of excess irritants, mucous cells in the lungs become stimulated to produce more mucus than they normally would. Of course, with damaged cilia, the lungs have no means of moving the mucous out. This usually results in an unproductive cough. In fact, the damage caused by smoking leaves the smoker at significantly higher risk for frequent respiratory infections, or chronic bronchitis.
Organic and additive free tobacco says it does not mean it is a safer alternative.
I would disagree in that, if there are significantly
more toxic chemical additives, SURELY the result would be
more cases of adverse health effects, including cancer.
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