A pioneering study conducted by Manchester Metropolitan University recently highlighted the harmful effects of vaping on human health. This research, one of the first to examine the long-term consequences of e-cigarette use in a controlled manner, reveals that the harm caused by vaping could be comparable to, or even greater than, that of traditional smoking.
Study methodology
The study was conducted at the university's Institute of Sport, involving participants aged 18 to 45 with similar fitness levels. Before testing, subjects were required to abstain from vaping, smoking, and exercising for 12 hours, consuming only water. The researchers assessed blood vessel elasticity and blood flow velocity to the brain, including using flow-mediated dilation (FMD) to measure the arteries' response to increased blood flow.
Worrying results
The results showed that vapers had similar FMD readings to smokers, indicating damaged arterial walls. Additionally, cerebral blood flow was also impaired in both groups. These anomalies are attributed to the presence of nicotine, heavy metals and chemical compounds such as propylene glycol and vegetable glycerin in e-liquids. Chemical aromas can cause inflammation and oxidative stress, negatively affecting arterial walls.
Health implications
The vascular damage observed can lead to plaque buildup in the arteries, increasing the risk of cardiovascular diseases such as heart attacks and strokes. Additionally, poor blood flow to the brain is associated with an increased risk of cognitive impairment, including dementia. Dr. Maxime Boidin, head of the study, emphasizes that the continuous inhalation of this mixture of metals and chemicals cannot be without consequences for the human body.
Reassessment of perceptions
Initially perceived as a less harmful alternative to tobacco, vaping is now being called into question by this new scientific data. Dr. Boidin admits that he believed in the relative benefits of vaping at the beginning of the study, but the results indicate that the dangers for regular vapers are little different from those for smokers. This awareness highlights the need for a reassessment of public perceptions and health policies regarding e-cigarettes.
Conclusion
The findings of this study suggest that vaping is not a risk-free alternative to smoking. The adverse effects on vascular and cognitive health require increased attention from health authorities and the general public. Stricter regulation and increased awareness are essential to prevent an emerging public health crisis linked to the growing use of e-cigarettes.
