How much does smoking increase the risk of developing coronary heart disease compared to non-smokers?

Smoking significantly increases the risk of developing coronary heart disease (CHD) due to the harmful effects of the various chemicals in tobacco smoke. Among the choices, the claim that smoking increases the risk of developing coronary heart disease by two times compared to non-smokers reflects a well-established understanding in public health research.

Studies indicate that smokers are at least twice as likely to develop coronary heart disease compared to non-smokers, as smoking contributes to the build-up of plaque in the arteries through mechanisms such as reducing oxygen in the blood and increasing blood pressure. This escalates the likelihood of arterial blockages that lead to CHD.

While some studies and resources may suggest that the risk is even higher, stating a two-fold increase is a conservative and widely accepted estimate that captures the essence of the impact smoking has on heart health, making it a valuable reference point in discussions about lifestyle choices and cardiovascular risk. Understanding this relationship helps in conveying the importance of smoking cessation and prevention strategies in promoting heart health.