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Smoking's Hidden Heart Danger Revealed
16 Sep
Summary
- Most smokers know lung cancer risk, fewer know heart disease link.
- Cardiovascular deaths from smoking outnumber cancer deaths.
- Secondhand smoke awareness lags, posing risks to non-smokers.

A significant portion of smokers worldwide lack full awareness of the severe cardiovascular risks associated with their habit, a recent study highlights. While over 90% correctly identify smoking as a cause of lung cancer, fewer understand its direct impact on heart disease, heart attacks, and strokes. These cardiovascular consequences are particularly alarming, as smoking-attributable deaths from heart disease and stroke in 2019 doubled those from lung cancer.
Compounding the issue, public understanding of secondhand smoke's dangers is even more limited. This lack of knowledge means smokers may not take adequate precautions to protect those around them from inhaling toxic chemicals. These chemicals damage blood vessels, promote plaque buildup, increase blood clotting, and raise heart rate and blood pressure, initiating cardiovascular damage even with low-level exposure.
Experts emphasize that quitting smoking entirely is the most effective step to mitigate these risks, with health benefits beginning almost immediately. Treatments combining medication and counseling can significantly improve chances of success. For those who continue to smoke, it is crucial to prevent exposure to others, especially vulnerable groups like children and the elderly. Understanding the full spectrum of harms, including those to the heart and blood vessels, offers a powerful incentive to quit for personal health and the well-being of loved ones.