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Are E-cigarettes Worse Than Cigarettes?

12/28/2023, 9:03:57 AM 1435


Introduction

Whether electronic cigarettes, or e-cigarettes, are better or worse than traditional combustible cigarettes has been hotly debated in recent years. As vaping has surged in popularity, both among youth and longtime smokers looking to quit, more research is needed to understand the full health impacts of this emerging technology. While e-cigarettes do not produce smoke from burning tobacco and thus avoid some chemicals in cigarettes, they still deliver nicotine through heated vapor and contain other potentially toxic ingredients.

This blog will examine some of the key differences in the chemicals found in e-cigarettes versus cigarettes, explore current evidence on the short-term and long-term health effects of vaping, consider factors contributing to the youth vaping epidemic, and discuss claims regarding e-cigarettes as smoking cessation devices. The goal is to objectively analyze available research on both sides to determine if vaping should be considered a healthier alternative or a risky behavior with unknown consequences.


Chemicals in e-cigarettes vs. regular cigarettes

While e-cigarettes do not involve burning tobacco leaves, which produces smoke and tar, they still deliver nicotine and other potentially harmful substances to users. A key difference is that cigarettes contain over 7,000 chemicals, including hundreds that are toxic and around 70 known to cause cancer. Some of the major chemicals found in significantly higher amounts in combusted cigarettes versus e-cigarettes include:

  • Carbon monoxide – High levels of this odorless, poisonous gas can be found in cigarette smoke, producing health impacts ranging from reduced oxygen delivery to the heart to increased risk of emphysema, heart disease and stroke. E-cigarettes contain negligible amounts.
  • Formaldehyde – A known human carcinogen, formaldehyde is released during combustible burning at levels hundreds of times greater than in e-cigarette vapor.
  • Acrolein – This toxic chemical found in highest amounts in cigarette smoke can cause irreversible lung damage. Vaping delivers around 1/50th the volume of acrolein.

However, e-cigarette vapor is not entirely risk-free. It still exposes users to nicotine and other potentially harmful substances like ultrafine particles, heavy metals like lead, volatile organic compounds, and carcinogenic flavor additives like diacetyl. More research is needed to evaluate health effects from long-term inhalation exposure to these lesser-but-still-present compounds.


Short-term health effects of vaping

While e-cigarettes were initially marketed as much safer than combustible cigarettes, more is now known about their potential health impacts after only short-term use:

  • Lung Inflammation/Irritation: Studies show e-cigarette vapor can induce acute lung inflammation and impair lung immune defenses, increasing susceptibility to respiratory infections like bronchitis or pneumonia.
  • Increased Blood Pressure/Heart Rate: Vaping has been shown to immediately increase a person’s blood pressure and heart rate, possibly due to nicotine effects but also other undisclosed ingredients. This can pose risks for those with cardiovascular disease.
  • Nausea/Seizures: Reports of acute nicotine poisoning from e-cigarette use have increased, particularly among youth, causing nausea, seizures, or loss of consciousness.
  • Addiction Potential: As vaping quickly delivers nicotine to the lungs and brain without the harshness of smoke, it may be even more addicting than cigarettes for developing minds and bodies.
  • Popcorn Lung: The flavoring diacetyl, which is strongly linked to the serious lung disease bronchiolitis obliterans (popcorn lung), has been detected in some e-cigarette products.

While more longitudinal studies are still needed, these early findings from pulmonary and cardio exams of vapers suggest e-cigarette use may negatively impact health, especially with long-term/heavy use. Short-term switching to e-cigs is not necessarily risk-free or evidence of their safety claims.


Potential long-term health risks of vaping

While the long-term impacts of e-cigarette use are still unclear due to their relatively recent emergence, some health risks of chronic vaping that researchers are investigating include:

  • Cardiovascular Disease: Studies link vaping to damaged blood vessels and heightened risk of heart attack or stroke, possibly due to inhaled toxins’ effect on cells lining the lungs and bloodstream.
  • COPD/Lung Disease: The tiny metal and vapor particles inhaled via e-cigarettes may cause or exacerbate chronic lung illnesses like COPD that take years to surface. Autopsies of vapers show early signs of emphysema.
  • Cancer Risks: There is growing evidence that e-cigarette vapor is not merely harmless water vapor, but exposes users to cancer-causing substances like formaldehyde. Long-term inhalation could bear similar risks to smoking.
  • Nicotine Addiction Risks: Regular e-cigarette use may heighten risks of smoking status (dual use or relapse), loss of productive years due to disease, or poorly managed addiction symptoms.
  • Adolescent Brain/Lung Harm: Nicotine exposure from vaping during developmental windows could have long-lasting consequences for brain development, cognitive ability, and cardiopulmonary fitness among youth.

With many vapers being relatively newer users, truly long-term epidemiological data is limited. However, research so far indicates chronic vaping poses measurable harmful effects and potential chronic disease risks as use continues over decades. More follow-up studies are underway.


Youth e-cig epidemic

One of the largest public health concerns around vaping relates to the surge in youth and young adult e-cigarette use over recent years. According to the CDC’s 2019 National Youth Tobacco Survey:

  • 5% of high school students and 10.5% of middle school students reported using e-cigarettes within the past 30 days, totaling over 5 million youth.
  • This reversed a previous downward trend in tobacco product usage, marking the largest increase ever recorded for any substance.

Factors driving this epidemic include attractive flavors like mint, mango and candy that research shows strongly appeal to youth. Over 80% of high school vapers reported using flavored products. Nicotine, whether from cigarettes or e-cigs, is highly addictive and can harm developing brains. Yet e-cig marketing is often aimed at youth demographics.

Studies also link teen vaping to later risks like smoking combustible cigarettes or using other substances. Those with developing brains are uniquely susceptible to nicotine addiction due to longer-lasting imprints. This threatens to undermine a generation of health gains from tobacco control efforts.

Without stricter regulations and public health warnings, advocates argue youth vaping will continue hooking new, lifelong users; reversing or forestalling other smoking declines; and imposing future public health burdens and costs. More action is needed.


E-cigarettes as cessation devices

As e-cigarette manufacturers market their products as a way for smokers to quit or cut down on regular cigarettes, some research has examined vaping’s effectiveness as a cessation tool. However, evidence remains mixed at best:

  • Most cross-sectional studies show dual use is more common than complete switching. Many ex-smokers continue long-term vaping.
  • RCTs point to e-cigs helping somewhat with short-term quit rates, but relapses increase over time and few abstain from all nicotine.
  • No long-term prospective studies demonstrate lifelong health benefits or lower disease risks versus other proven cessation methods.
  • The unique addictiveness of vaping nicotine poses risks of prolonging dependence versus quitting nicotine altogether.
  • FDA-approved nicotine gums, patches and medications are considered significantly more effective long-term solutions by public health experts.

While e-cigarettes may offer advantages over smoking for some, promoting them as cessation tools is at best premature given lack of evidence they effectively help the majority quit all nicotine or smoke long-term without issues. More research on long-term abstinence rates is still needed. For now they remain an unproven option.


Conclusion

In summary, while e-cigarettes contain fewer of the toxic chemicals encountered in combusted cigarettes, research increasingly shows that vaping still poses genuine health risks that may outweigh any potential benefits as a smoking alternative or cessation aid. Both short-term effects like lung and cardiovascular damage and long-term risks of chronic disease continue emerging from epidemiological studies.


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