If Cannabis Smoking Didn’t Adversely Impact Lung Function You Would Have Read About It, Right?

To follow up on yesterday’s blog post, here are the findings of yet another just published study that the mainstream media will undoubtedly ignore.

Effects of cannabis on lung function: a population-based cohort study
via nih.gov

The effects of cannabis on lung function remain unclear and may be different to tobacco. We compared the associations between use of these substances and lung function in a population-based cohort (n=1037). … Cumulative cannabis use was associated with higher forced vital capacity, total lung capacity, functional residual capacity, and residual volume. Cannabis was also associated with higher airways resistance but not with forced expiratory volume in 1 second, forced expiratory ratio, or transfer factor. These findings were similar amongst those who did not smoke tobacco.

By contrast, tobacco use was associated with lower forced expiratory volume in 1 second, lower forced expiratory ratio, lower transfer factor, and higher static lung volumes, but not with airways resistance. Cannabis appears to have different effects on lung function to those of tobacco.

Just in case you think that this is the first time that researchers have failed to document a decline in lung function in marijuana users, well, think again. And again. And again.