Growing research suggests that e-cigarettes may cause side effects similar to those of conventional tobacco, including increased risks of lung cancer.
Although e-cigarettes do not contain tobacco, multiple recent studies warn that vaping may be linked to the development of lung cancer due to the presence of carcinogenic chemicals in the liquids used.
Experts point out that the scientific evidence is still developing, but there are clear warning signs reminiscent of the process experienced decades ago with tobacco.
Vaping products, by heating liquids containing nicotine, THC, and aromatic additives, generate a vapor that the user inhales.
However, this practice is not without risks. Analysis has detected more than 500 chemical compounds, many of them with carcinogenic properties, in vaping cartridges .
Toxic substances in vaping devices
Among the most dangerous components found in vaping products are:
- Nicotine, a highly addictive compound present in most of these devices.
- Formaldehyde, benzene, and heavy metals are all linked to lung cancer.
- Diacetyl, a flavoring associated with the lung disease known as “popcorn lung.”
- Ultrafine particles, which, when inhaled, penetrate deep into the lungs, aggravating respiratory conditions such as asthma.
These chemicals can damage cellular DNA and cause chronic inflammation, a known risk factor for the development of mutations that lead to serious lung diseases and cancer.
The pattern is reminiscent of tobacco: decades between suspicions and certainties.
The medical community sees disturbing parallels between the current vaping boom and the 20th-century tobacco boom. Although the link between smoking and cancer had been suspected since the 1930s, it wasn’t until the 1960s that it was scientifically confirmed. Vaping may be following a similar trajectory, with initial studies warning of risks, but no definitive confirmation… yet.
A recent study revealed that vapers who also smoke traditional cigarettes are four times more likely to develop lung cancer than those who only smoke. Although the data is inconclusive, the increased likelihood is alarming.
Lung Diseases Linked to Vaping
In addition to the potential cancer risk, e-cigarette use has already been associated with several serious respiratory conditions:
EVALI (vaping-associated lung injury): In 2019, thousands of people were hospitalized after inhaling liquids containing vitamin E acetate.
Bronchiolitis obliterans, caused by inhalation of diacetyl, causes permanent scarring of the bronchioles.
Lipoid pneumonia results from the inhalation of oily substances that cause lung inflammation.
Possible links to worsening asthma and COPD (chronic obstructive pulmonary disease) are also being investigated, although studies are not yet conclusive.
Is it a safer alternative to cigarettes?
Vaping is often touted as a way to quit smoking, but experts warn that it’s merely replacing one harmful habit with another. While vaping may seem less harmful than tobacco smoke, inhaling it introduces a combination of harmful chemicals into the body, whose long-term safety is highly questionable.
The lack of strict regulation, especially by agencies like the FDA, often leaves consumers unclear about what substances they are inhaling. This uncertainty increases the risk.
Quitting vaping—much like quitting cigarette smoking—offers concrete respiratory benefits and can significantly reduce personal expenses. Nicotine addiction remains a significant challenge, but there are resources and support for those who choose to take the plunge.