Quite interesting, here is the article that the news post links to:
I have not read with the necessary detail, but found interesting details(I DID NOT CONFIRM ANY REFERENCE):
In retrospective propensity-matched analysis of 161000 patients with heart failure, cannabis use was associated with a lower risk for death while the patient was hospitalized with acute heart failure (OR, 0.197 [95% CI, 0.046–0.833]), shorter mean hospital stay (4.2 vs 4.8 d, respectively; P=0.004), and lower mean hospital costs ($43,800 vs $50,900, respectively; P=0.039) compared with nonusers. However, these data are retrospective and observational and have not been peer reviewed.
There is a lot of info on the effects of smoking, particularly related to the intake of carbon monoxide and tar. The rest is clearly stated as unclear:
" Cannabis has multiple effects on the cardiovascular system (Figure 5).20–22 Tetrahydrocannabinol stimulates the sympathetic nervous system while inhibiting the parasympathetic nervous system; increases heart rate, myocardial oxygen demand, supine blood pressure, and platelet activation; and is associated with endothelial dysfunction and oxidative stress. In contrast, CBD may reduce heart rate and blood pressure, improves vasodilation in models of endothelial dysfunction, and reduces inflammation and vascular hyperpermeability in diabetic models.20–22 Compared with smoking tobacco, smoking and inhaling cannabis regardless of THC content has been shown to increase the concentrations of blood carboxyhemoglobin 5-fold with a 3-fold increase in tar.23 Carbon monoxide intoxication, which varies depending on the mode of administration, depth of inspiration, and length of breath holding, has been associated with endothelial dysfunction, increased oxidation of lipoproteins, and impaired oxygen binding, as well as various cardiac clinical presentations such as cardiomyopathy, angina, acute myocardial infarction (AMI), arrhythmia, cardiac failure, pulmonary edema, cardiogenic shock, and sudden death.24 A key concern is whether cannabis triggers or potentiates major adverse cardiovascular events such as AMI and arrhythmias, as well as its impact on cardiovascular risk factors.20 Unfortunately, most of the available data are short term, observational, and retrospective in nature; lack exposure determination; exhibit recall bias; include minimal cannabis exposure with no dose or product standardization; and typically evaluate low-risk cohorts. In addition, many epidemiological studies may be confounded by factors associated with access to health care and other adverse health behaviors such as tobacco use.20 Finally, because the concentration of THC in cannabis has been increasing over the past several years, earlier studies may not be relevant to the present experience.25 "
And this one doesn't specify the administration method:
Cannabis exposure has been associated with an increased risk for cerebrovascular accidents.20 In an retrospective evaluation of the Personality and Total Health Through Life study, which included participants 20 to 24 years of age (n=2404), 40 to 44 years of age (n=2530), and 60 to 64 years of age (n=2551) in 1999 to 2000, 2000 to 2001, and 2001 to 2002, respectively, Hemachandra et al38 found a 3.3-fold risk of stroke/transient ischemic attack in cannabis users within the past year. However, this elevated risk was specific only to participants who used cannabis weekly or more often, not those who used cannabis less often.
A note on the sampling:
In the current literature, summarized in Table 3, few data from rigorous prospective cohort studies have been published.19,26–49 In the CARDIA study (Coronary Risk Development in Young Adults), which included adults 18 to 30 years of age followed up for ˃25 years, 84% reported history of cannabis use.29 Cumulative lifetime and recent cannabis use did not show an association with incidence of cardiovascular disease, Figure 5. Effects of exogenous cannabinoids on the cardiovascular system. CB1 R indicates cannabinoid receptor subtype 1; CB2 R, cannabinoid receptor subtype 2; CBD, cannabinoid; ERK, extracellular signal-regulated kinases; JNK, c-Jun Nterminal kinase; MAPK, mitogen-activated protein kinases; THC, Δ-9-tetrahydrocannabinol; TNFα, tumor necrosis factor-α; and ?, questionable. Data derived from DeFilippis et al,20 Pacher et al,21 and Rezkalla and Kloner.22 Downloaded from
http://ahajournals.org by on August 5, 2020 Page et al Cannabis and Cardiovascular Health e10 TBD TBD, 2020 Circulation. 2020;142:00–00. DOI: 10.1161/CIR.0000000000000883 CLINICAL STATEMENTS AND GUIDELINES coronary heart disease, or cardiac mortality. However, several studies have shown signals for adverse cardiac outcomes, mostly for hospitalized patients with inherent selection bias.28,31–36,40,41,43,45,49 In the case of studies including only participants who were hospitalized, only a fraction of the overall population who experienced a health outcome were analyzed. Of note, when hospitalized patients with cannabis use serve as cases and those without cannabis use serve as controls, a high probability of selection bias exists. Thus, uncertainty exists for cannabis use as a cause for hospitalization
I wonder how people read this and come with such an article. It's time to stop talking based on opinions and feelings and to start backing up our claims with the best scientific evidence available. If not we're all but wasting people's time and worst of all, making them believe that kind of discourse has any validity or is worth anything at all. If people think knowing is only about reading half baked articles that are based on opinions they start building faulty knowledge, and it's not their fault, because they don't know that to know something, with a decent degree of reliability you need to go so deep as to read the research papers and not the news flash that picks the most radical statistics from it, which without context is absolutely meaningless.
Knowing is not a matter of opinion. You don't know because you feel strong about something. You don't get to tell people how things are just because you trust whoever told you so, there is a responsibility whenever you share knowledge and there are consequences. Sharing a belief may result in death.
If someone wants to live such a simple life that such news articles are your source of truth(oooh easy wooorld), then at least commit to not contaminating others with your ideas(or clearly state them as BEING IDEAS). If reality was easy, people wouldn't waste years to run a small experiment that is nothing but a reference to other experiments. I mean, how can someone think it to be that easy? How can people not realize the complete worthlessness of such news.
Even when reading the article, most of the times the information is only valid on extremely picky conditions. Why are people becoming stupid again? People are acting as if science was a religion to preach. It's not lol. Can't people ever leave that behavior and wake up to a real complex world?
