How long after quitting smoking does the risk of heart disease begin to decrease?

The risk of heart disease begins to decrease significantly within one year of quitting smoking. During this period, the body starts to repair itself from the damage caused by smoking, and cardiovascular health begins to recover.

When an individual quits smoking, there is an immediate benefit in terms of improved circulation and blood pressure. However, structural changes and the return of heart health to levels closer to those of a non-smoker take longer. Research indicates that after one year, the risk of coronary heart disease is substantially reduced compared to that of a smoker, demonstrating the body's ability to heal over time.

The timeframe for risk reduction varies, but the one-year mark is particularly significant, as many studies find a dramatic decrease in heart disease risk after this duration compared to continued smoking. Understanding this timeline is crucial for encouraging individuals to quit, as it highlights the long-term health benefits of cessation.