New marijuana study on long term lung function

  • Context: Medical 
  • Thread starter Thread starter Greg Bernhardt
  • Start date Start date
  • Tags Tags
    Function Study Term
Click For Summary

Discussion Overview

The discussion centers around a recent study examining the long-term effects of marijuana use on lung function, specifically addressing whether smoking 1-2 joints per week is harmful. Participants explore various aspects of the study, including its methodology, implications for lung health, and comparisons to cigarette smoking.

Discussion Character

  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants highlight that the study claims 1-2 joints a week does not harm lung function long-term, suggesting a balanced approach to consumption.
  • Others question the validity of the study's conclusions, noting that it primarily measures forced expiratory volume (FEV1) and forced vital capacity (FVC), which may not fully capture the health impacts of marijuana smoking, such as lung cancer risk.
  • A participant mentions that marijuana users tend to inhale deeply, which might influence lung function test results positively, but this could also reflect practice rather than actual lung health benefits.
  • Concerns are raised about the study's narrow focus, with some arguing that it overlooks important outcomes like lung cancer and other respiratory issues associated with marijuana use.
  • There is discussion about the differences in smoking methods, such as using bongs versus joints, and how these might affect pulmonary function.
  • Some participants express skepticism about the study's findings, suggesting that the reported low usage rates may not reflect typical consumption patterns among users.
  • Several participants share personal anecdotes about their own or others' smoking habits, indicating variability in usage frequency and methods.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the implications of the study. While some support the idea that moderate marijuana use may not harm lung function, others raise significant concerns about the study's methodology and the broader health implications of marijuana smoking.

Contextual Notes

Limitations include the study's focus on specific lung function metrics and the lack of examination of lung cancer rates and other respiratory health issues. Additionally, the discussion reflects a diversity of personal experiences and beliefs regarding marijuana use.

  • #31
Pythagorean said:
Since you're targeting the smoke point of THC and not burning the cellulose (there's still a bud leftover after you vaporize it) you have to be careful about what you extrapolate from a cigarette study (which doesn't have THC and which does burn cellulose). I don't know any numbers.

I've never even seen a vaporizer before so I'm not expert on the smoke it contains. A internet picture is the best I can do. I would assume the density of smoke correlates with it's carcinogenicity so I need to see the smoke you're talking about.

The theory of the bong is that the water filters it, but the water doesn't actually filter everything. As bubbles pass through the water, only the contents on the edge of the bubbles get held behind, so it's actually quite a crude filter. If you have a way to percolate the bubbles and diffuse them more, then you are getting a better filter.

Right, surface area is much higher with smaller bubbles, and surface area matters most in this case. I think the only point of a gravity bong is to allow the smoke to cool.

How about rectal administration haha (from pdf above):
Pharmacokinetics and Pharmacodynamics of Cannabinoids said:
3.1.4 Rectal Administration
With rectal application, systemic bioavailability strongly differed depending on suppository formulations. Among formulations containing several polar esters of THC in various suppository bases, THC-hemisuccinate in Witepsol H15 showed the highest bioavailability in monkeys and was calcu-lated to be 13.5%.[50] The rectal bioavailability of this formulation was calculated to be about as twice as high as oral bioavailability in a small clinical study.[25]

I don't know why they would use monkeys - I have several friends who would have volunteered after wasting their last 5 bucks on a cannoli and scratch and sniff stickers.
 
Biology news on Phys.org
  • #32
haha, wow, who'd have thought... now they just need to come out with cannabis toilet paper.
 

Similar threads

  • · Replies 32 ·
2
Replies
32
Views
7K
  • · Replies 47 ·
2
Replies
47
Views
10K
Replies
2
Views
3K
  • · Replies 2 ·
Replies
2
Views
3K