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Smokers know tobacco causes cancer. They’re less clear on the heart risks

Published August 14, 2026 · Updated August 14, 2026 · By Sandra Jones - poinews.com

Foto : Sandra Jones - poinews.com

Smokers Know Tobacco Causes Cancer, But Heart Risks Remain Unclear

Poinews.com – Smokers know tobacco causes cancer, yet many still underestimate its impact on cardiovascular health. Even after two decades of anti-smoking campaigns, the majority of smokers correctly identify the link between tobacco use and lung cancer. However, a substantial portion remains confused about how smoking affects the heart, increasing risks of heart attacks, strokes, and other serious conditions. According to research published in BMJ Open, public awareness of smoking-related dangers has plateaued since 2002. This stagnation continues despite widespread health messaging and prominent warning labels on cigarette packages.

Janet Chung-Hall, a research scientist at the University of Waterloo's International Tobacco Control Policy Evaluation Project, spearheaded the comprehensive study. She pointed out that the knowledge gap extends beyond personal health to include second-hand smoke exposure and its cardiac consequences.

"Knowledge gaps about the major health effects of smoking and second-hand smoke are deeply concerning,"

Chung-Hall explained. With more than two million cardiovascular deaths occurring each year worldwide, this lack of understanding is particularly troubling. Cardiovascular diseases currently account for the leading cause of premature death from non-communicable illnesses globally, with smoking identified as one of the most significant modifiable risk factors.

Global and Regional Awareness Patterns

The research team analyzed survey responses from over 240,000 smokers across 46 countries. Data was collected through the WHO's Global Adult Tobacco Survey and the ITC Project over a twenty-year timeframe concluding in 2022. While nearly all participants acknowledged the lung cancer connection, only approximately eighty percent associated smoking with heart disease. Awareness levels fell even lower when it came to stroke risk and the dangers of passive smoking.

European countries displayed varied outcomes. Lung cancer awareness increased significantly in the Netherlands but declined in Germany, France, and Romania. Furthermore, understanding of second-hand smoke hazards decreased in several of these nations. Brussels has progressively enhanced regulations regarding advertising restrictions and health warnings. Previous research within six EU member states indicated that well-informed smokers tend to respond more effectively to package warnings.

Policy Actions and Long-Term Objectives

Geoffrey T. Fong, principal investigator for the ITC Project, emphasized that education plays a crucial role in motivating people to quit.

"Knowledge is an important first step toward quitting smoking and protecting others from second-hand smoke,"

He stated. Fong called on governments to strengthen awareness campaigns covering both heart and cancer risks. Multiple countries are introducing tighter regulations to reduce tobacco consumption. The United Kingdom passed legislation in April banning tobacco sales to anyone born in 2008 or afterward. At the same time, Belgium and Latvia banned disposable vapes earlier this year because of their popularity among young people and environmental impact. Spain and France also restricted outdoor smoking zones recently.

The European Union aims to reduce the smoking rate to under five percent by 2040, compared to current figures around twenty-five percent. Flavored cigarettes and roll-your-own tobacco have already been prohibited under the EU Tobacco Products Directive. A review of newer nicotine delivery systems is currently in progress. Worldwide, tobacco continues to be the foremost preventable cause of death. The World Health Organization states that smoking kills over seven million people annually, including 1.6 million non-smokers exposed to second-hand smoke.

Frequently Asked Questions

How does smoking affect heart health? Smoking damages blood vessels, raises blood pressure, and increases the likelihood of blood clots, all of which contribute to heart disease and stroke.

What percentage of smokers know about heart risks? Approximately eighty percent of smokers recognize the connection between tobacco and heart disease, though awareness varies by region.

When will tobacco sales be banned for younger generations? The UK implemented a ban in April for tobacco sales to individuals born in 2008 or later, with similar measures being considered elsewhere.

What is the EU's smoking reduction target? The European Union plans to lower the smoking rate to below five percent by the year 2040.

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