Smoking cigarettes can drastically reduce a person's life expectancy. In a study performed in the late 1990s by the Centers for Disease Control and Prevention, smoking was found to shorten the life expectancy of male smokers by 13.2 years. Female smokers were even worse off, as smoking was found to shorten their lives by 14.5 years. In addition, the study found that smokers were far more likely to die between the ages of 35 and 69 than those people who never smoked. But shorter life expectancy is not the only thing smokers need to be concerned about. Smoking can lead to a host of diseases, even if those diseases do not always contribute to an individual's death. Chronic bronchitis, emphysema, heart disease, stroke, and cancer are all linked to smoking, while additional studies have indicated a possible link between smoking and erectile dysfunction among male smokers.