A recent study analysing medical data from 200 million people has revealed that marijuana usage significantly increases the risk of heart disease. The findings show that cannabis users are twice as likely to die from heart-related issues compared to non-users. This comprehensive study, led by Émilie Jouanjus from the University of Toulouse, focussed on younger individuals, aged 19 to 59, many of whom had no prior cardiovascular problems or smoking history.
In addition to the doubled mortality risk, cannabis users also had a 29% higher likelihood of experiencing heart attacks and a 20% higher chance of suffering strokes, according to research published in the journal “Heart”. Dr Lynn Silver, a clinical professor at the University of California, underscored the seriousness of these findings, particularly as cardiovascular disease remains the leading cause of death globally. She emphasised the need for health professionals to address cannabis use similarly to tobacco use by screening patients and educating them about associated health risks.
Silver also highlighted the current regulatory approach towards cannabis, which she described as overly focussed on legal frameworks for commercial sales, rather than prioritising public health education about risks. The systematic review examined numerous studies conducted across several countries, but did not specify the methods of cannabis consumption, such as smoking, vaping, or edibles.
While the health risks linked with smoking tobacco are well-documented, this study suggests potential similar hazards with cannabis use, primarily through inhalation. Physicians express concern over the misconception that cannabis is safer due to its ‘natural’ status. Dr Beth Cohen articulated that burning any substance releases harmful toxins, irrespective of the source.
Moreover, edibles infused with tetrahydrocannabinol (THC) may also contribute to heart disease. A study reported that individuals consuming THC-infused edibles exhibited cardiovascular risk indicators akin to tobacco smokers.
The discussions around cannabis potency raise additional alarms. Though exact THC levels were not assessed in the studies, the increasing strength of cannabis products today presents new health challenges. Experts note that contemporary cannabis can be markedly more potent than that of previous decades, potentially increasing risks of addiction and psychosis among users.
As these findings continue to unfold, experts urge caution, particularly for those over 60 or those with existing heart disease risks. The importance of re-evaluating the health implications of cannabis use cannot be overstated, especially in light of the increasing prevalence of its usage among the population.