IntroductionThe measurement of life expectancy can be measured by mortality and morbidity (Molla). Mortality is the inclusion of mortality rates, and morbidity is included in life expectancy when studies focus more on the life of the individual rather than death. The inclusion of morbidity in life expectancy is called healthy life expectancy, and the metric used to measure healthy life expectancy is well-being, based on surveys (Perenboom). When focusing on healthy life expectancy, as opposed to total life expectancy, life years are divided into two or three groups based on the number of healthy years and years in poor health (Wood). Worldwide, 49 counties measure life expectancy (Molla). These countries can be divided into two groups: those with high mortality and those with low mortality. Life expectancy in each group of countries is increasing at about the same rate, and this rate has been increasing for decades (Bloom). Life expectancy is increasingIn 1800, overall life expectancy was about 30 years (Bloom). In 1850, life expectancy increased to 41 years (Goldstein). Later, the total life expectancy increased to 52.3 years in 1963 (Bloom). In 1998, 16-year-old men and women had a total life expectancy of 59.9 and 65.1 years (Perenboom). In 2001, total life expectancy was 78.9 years for women and 73.5 years for men. Of these years, 70.3% and 58.6% respectively were spent in good health (Bois). The increase in total life expectancy is global. Countries with a total life expectancy of less than 40 years saw a ten-year increase between 1963 and 2003. During the same period, countries with an average life expectancy [around 5 years] saw an additional 20 years. add to their life expectancy. vit...... middle of paper ......012. Internet. .Vinas, Michael S. “Timeline of Medical/Technological Advances.” Infusion line. August 8, 1999. Web. February 6, 2012. .Winkleby, Marilyn M., Darius E. Jatulis, Erica Frank and Stephen P. Fortmann. “Socioeconomic status and health: how education, income, and occupation contribute to cardiovascular disease risk factors.” American Journal of Public Health 82.6 (1992): 816-20. Internet. February 6, 2012. .Wood, Rachael, Matt Sutton, David Clark, Amy McKeon and Marion Bain. “Measuring health inequalities: the case for healthy life expectancy.” Journal of Epidemiology and Community Health 60.12 (2006): 1089-092. JSTOR. BMJ Publishing Group. Internet. February 6. 2012. .