Cannabis smoking has increased under the spring’s pandemic quarantine, as people stay at home to avoid contracting or spreading Trump Flu. This has naturally lead to questions about whether cannabis use could be one of those health pre-conditions that make Covid more dangerous.
Whether it helps fight Covid or not, cannabis smoke does help fight boredom and, luckily, we have good cause to relax about vaping or smoking as well as using tinctures and edible cannabis products.
Cannabis smoke or vapor exposure does not negatively impact the lungs like tobacco, nor is it similarly linked to elevated rates of either COPD (chronic obstructive pulmonary disease) or lung cancer, according a literature review published in the scientific journal Addiction.
Clinical data review is positive
A team of New Zealand researchers reviewed clinical trial data assessing the impact of cannabis smoke exposure on the lungs. They report that “the effects of smoking cannabis on the lungs are distinct from tobacco.”
Specifically, they write: “[I]t has been pragmatic to assume that cannabis and tobacco would have similar respiratory effects. … The research that has been done, however, offers a different story.
“The most common serious respiratory consequences from smoking tobacco are Chronic Obstructive Pulmonary Disease (COPD) and lung cancer. Epidemiological evidence that smoking cannabis causes either of these is scant.”
Higher rates of phlegm, bronchitis, though
However, it’s not exactly an all clear, either. Authors reported that cannabis smoke exposure is associated with higher rates of cough, sputum production and chronic bronchitis.
They found “little epidemiological evidence of an association between cannabis and emphysema,” and conflicting evidence with respect to whether marijuana smoke exposure is associated with an increased risk of pneumonia.
Their findings are consistent with those of other literature reviews, such as those here and here.
Full text of the study, “Cannabis use disorder and the lungs,” appears in Addiction. Additional information is available in the NORML fact-sheet, ‘Cannabis Exposure and Lung Health.”
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