Life Expectancy differs with the Environment Essay

Life Expectancy differs with the Environment - Essay Example In this respect, it means that individual life expectancies should be obtained in order to obtain their mean or average. Life expectancy of an individual can be established at birth when the age is 0 and assuming that the person is going to live for a given numer of years, ?. The life expectancy of an individual who will leave for ? years depend on the life probability at time t for the individual surviving from the 0 age to age ? (the highest age attained). Therefore, life expectancy at birth is a function of the age at that time and the highest age likely to be attained, which is illustrated as ; where L ­e is the life expectancy at a particular age, x, and it is a function of O age and time, t. Based on the fact that life expectancy of an individual is a function of current age and the time he/she is likely to leave, the formula for life expectancy of an individual is as follows; In the above function, is the lifetable probability that the individual in question at time t will s urvive from birth to age a, and attain the highest possible age, ?. This is the formula for calculating the life expectancy of an individual at birth to a given age and possible the highest attained age. As will become apparent at the end of this study, life expectancy differs across different countries. At the same time, there is a clear difference between life expectancy levels of both males and females5. The differences in these two instances are caused by the same factors. The most significant factors are herewith discussed6. One of the most cited factors are differences in socioeconomic status. Most countries and individuals in these countries are at different economic stages. Some are more economically disadvantaged than others. It has been found... As will become apparent at the end of this study, life expectancy differs across different countries. At the same time, there is a clear difference between life expectancy levels of both males and females . The differences in these two instances are caused by the same factors. The most significant factors are herewith discussed . One of the most cited factors are differences in socioeconomic status.   Most countries and individuals in these countries are at different economic stages. Some are more economically disadvantaged than others. It has been found that individuals or countries that have historically been economically disadvantaged, exhibited by such factors as unequal access to educational and occupational opportunity have   lower life expectancies .   This is because disadvantages often mean that these individuals cannot access important opportunities, such as employer-based health insurance and thus high mortality rates. Lastly, economically challenged countries or ind ividuals have   prevalence of diseases a factor which increases mortality rates reducing life expectancy. In most studies, it has also become quite apparent that there is a clear variation in life expectancy arising from gender differences. As will be seen in subsequent representations, at every age, females have a higher life expectancy level than males. The biological explanation is founded on the premise that females have a physiological advantage that translates to higher longevity. Each of these explanations has evidence supporting their positions.