How does smoking impact overall health and healthy years of life?

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Smoking Significantly Reduces Life Expectancy and Healthy Years

New analysis indicates that smoking has a substantial detrimental impact on both overall life expectancy and the duration of healthy living. On average, each cigarette smoked can reduce a person's life expectancy by approximately 20 minutes. This loss is not concentrated at the end of life but primarily affects the healthy middle years.
Loss of Healthy Years Equals Lost Life Expectancy

The research suggests that the years lost due to smoking are largely years that would have been spent in relatively good health. This means that smokers often experience a diminished quality of life in their later years, with a 60-year-old smoker potentially having the health profile of a 70-year-old non-smoker. The harm from smoking is cumulative, with earlier cessation leading to greater gains in both lifespan and healthy years.
Gender-Specific Reductions in Life Expectancy

Estimates show that men lose approximately 17 minutes of life for every cigarette they smoke. Women, however, face a greater reduction, losing an estimated 22 minutes of life expectancy per cigarette. These figures highlight a significant, quantifiable loss of life associated with the act of smoking.
Immediate and Cumulative Benefits of Quitting

The benefits of quitting smoking are immediate and increase with sustained abstinence. For instance, quitting for just one week could add a full day to one's life expectancy. Continuing to abstain for seven months can extend life by a whole month compared to continuing to smoke, underscoring the potent and cumulative positive effects of cessation.

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How does smoking impact overall health and healthy years of life?

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