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.

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.

An underestimated danger