Study Finds No Link Between Long-Term Cannabis Use and Adverse Lung Health
New research has been published this January outlining the long term effects of cannabis smoke on the lungs. What did the find? That there is no negative association between the two, helping put many a stoners’ minds at rest.
Published in the peer reviewed journal Annals of the American Thoracic Society, researchers from Emory University assessed the effects of smoking one joint per day for 20 years on lung force expiratory volume using a large sample of 18 to 59 year old participants.
Not only did they find that there was no decline in force expiratory volume, but that cannabis smoke also appeared to have some protective effects in long term tobacco smokers.
It is a huge step forward in lung related cannabis research. This study is the largest and most comprehensive analysis of the relationship between cannabis smoke and its effects on lung function to date; and it backs up what previous research suggests – that cannabis does not appear to have a negative impact on lung health.
We are still not there in terms of a definitive answer, but the scope of this study is pretty big, opening the door for even larger, more detailed work – hopefully it will be a trend that continues.
It is worth noting however, that the researchers report that cannabis users tend to self-report increased instances of bronchitis, but whether this is caused by cannabis use, or is simply a symptom of cannabis users worrying about their health is unknown – hence a need for more research. It was also noted that vaporizing cannabis appeared to overcome this problem, reducing self-reporting. Either way, you can rest easy knowing that your beloved bud is not doing the damage that so many believed it was.
You can check out the research for yourself here: http://www.ncbi.nlm.nih.gov/pubmed/25521349