What Are the Effects of Smoking and E-Cigarettes on the Heart?

Created: 20.04.2026  ·  Last Updated: 24.07.2026  ·  Category: Cardiology  ·  Prepared by the Academic Hospital Web and Medical Editorial Board.

In modern life, the search for “less harmful” alternatives continues rapidly. The number of people trying to choose between e-cigarettes and conventional cigarettes is increasing quickly.

The most critical question is:

Are e-cigarettes really less harmful, or does only the form of risk change?

Important Information: For cardiovascular health, the safest approach is to stay completely away from nicotine and tobacco products. E-cigarettes should not be considered harmless; nicotine, heavy metals, chemical solvents, flavoring substances and fine particles may negatively affect the cardiovascular system.

What Is the Effect of Smoking on the Heart?

Conventional cigarettes contain nicotine, carbon monoxide and thousands of toxic substances. These substances:

  • Cause narrowing of the blood vessels.
  • Lower the oxygen level in the blood.
  • Significantly increase the risk of heart attack.

As a result, rapidly progressing and aggressive vascular damage occurs.

What Is the Effect of E-Cigarettes on the Heart?

Although e-cigarettes are often perceived as “harmless,” scientific data do not support this. Their contents may include:

  • Nicotine,
  • Heavy metals,
  • Chemical solvents,
  • Flavoring substances that may have negative effects on the cardiovascular system.

Effects of e-cigarettes:

  • They increase heart rate.
  • They raise blood pressure.
  • They damage the inner surface of blood vessels.
  • They increase the risk of atherosclerosis.

Some studies show that even flavoring substances may have toxic effects on heart cells.

You can contact us for heart health evaluation and a cardiology appointment.

Book an Appointment

Can E-Cigarettes Be Used as a Smoking Cessation Method?

Although this is a common belief, e-cigarettes are not a smoking cessation method.

  • They continue nicotine addiction.
  • They create a new usage habit.
  • They increase the risk of dual use, meaning both cigarette and e-cigarette use.

REMEMBER: E-cigarettes are not a smoking cessation tool; they are another gateway to smoking and the development of addiction.

Can the Heart Recover After Quitting Smoking or E-Cigarettes?

Yes, the body has the capacity to recover.

  • Within the first 24 hours, the burden on the heart decreases.
  • Within weeks, circulation begins to improve.
  • In the long term, the risk of heart disease decreases significantly.

The earlier a person quits, the greater the benefit.

The safest option to protect your heart is to completely avoid nicotine and tobacco products.

Get Evaluated for Your Heart Health

You can receive cardiology evaluation for smoking, e-cigarette use, palpitations, high blood pressure or cardiovascular disease risk.

Frequently Asked Questions

Can the heart recover after quitting smoking or e-cigarettes?
Yes. The burden on the heart decreases in a short time. In the long term, the risk of heart disease decreases significantly.
Is nicotine-free e-cigarette use harmless?
No. Even without nicotine, chemicals and particles found in e-cigarettes may harm vascular health.
Does secondhand exposure also occur with e-cigarettes?
Yes. Although e-cigarettes may seem to produce “vapor,” this is actually an aerosol made of very small particles released into the air. This aerosol may contain nicotine, heavy metals and fine particles. These substances spread into the environment and may be inhaled by nearby people, especially in indoor spaces.
Can e-cigarettes be used as a smoking cessation method?
E-cigarettes should not be considered a safe smoking cessation method. They may continue nicotine addiction and increase the risk of dual use.
Academic Hospital note: Smoking and e-cigarette use may negatively affect cardiovascular health. Cardiology evaluation is important if chest pain, palpitations, shortness of breath, high blood pressure or cardiovascular disease risk is present. You can book an appointment for evaluation.

References

  1. CDC. Health Effects of Cigarettes: Cardiovascular Disease
  2. CDC. Health Effects of Vaping
  3. CDC. Benefits of Quitting Smoking
  4. American Heart Association. What’s in a vape? Why e-cigarettes are hardly harmless