What is the life expectancy between a smoker and non smoker?

On average, smokers have a significantly shorter life expectancy compared to non-smokers, often losing about 10 years of life due to smoking-related illnesses. While non-smokers typically live into their 80s or longer, smokers are at increased risk for various health issues, including lung cancer and Heart disease, which can lead to earlier mortality. Quitting smoking at any age can improve life expectancy and overall health.