E-liquids used in electronic cigarettes contain substances such as propylene glycol, vegetable glycerin and various flavorings. These components, when heated, can release toxic compounds such as formaldehyde and acrolein, known for their irritating and inflammatory effects on the respiratory tract.
Effects on the respiratory system
Inhaling e-cigarette aerosols can cause inflammation of the airways, leading to coughing, throat irritation, and difficulty breathing. Studies show that these effects are not limited to prolonged use: even a single vaping session can reduce oxygen saturation and temporarily impair lung function.
Impact on the cardiovascular system
The University of Pennsylvania study also showed that vaping, even without nicotine, affects blood flow. A single use can reduce blood flow speed in key arteries, such as the femoral artery. This reduction is due to ultrafine particles that penetrate deep into the circulatory system, promoting oxidative stress and inflammation, two factors associated with cardiovascular disease.
Vaping devices sometimes release heavy metals such as nickel, lead and chromium, which are present in inhaled aerosols. These substances, if inhaled repeatedly, can cause neurological disorders and serious lung damage.
In addition to observations on immediate effects, the researchers point out that regular use of e-cigarettes, even without nicotine, could lead to chronic respiratory and cardiovascular diseases. The combined impact of toxic substances, ultrafine particles and heavy metals represents a significant health risk.
Conclusion
It is crucial to deconstruct the idea that vaping without nicotine is a harmless practice. Its effects on the respiratory and cardiovascular systems are real and documented. For smokers looking for solutions to quit smoking, it is recommended to favor recognized weaning methods supervised by health professionals.
