Life Expectancy

Can anyone tell when he is going to die? Yes it is not possible. But one can tell the approximate time of his or her death depending on the region, medical history and habits.

This method of determining one’s approximate life span can be called as life expectancy. The technical definition would be the approximate years of life the one has before death. Though this may not be accurate, it gives you the idea of people’s health aspects in that particular region. There can be several such definitions for life expectancy. The life expectancy can be calculated using some formulas that involve various factors such as medical history, hereditary defects, smoking practice, drinking practice etc. The formula involves probability studies and taking values from a chart called as life table. By this method, life expectancy is calculated. Specific regions have specific values of life expectancy.

This may be due to varied climatic conditions and other factors that cause degeneration of cells. Considering an example, In USA, the life expectancy is about 77 years; while in some African countries it is only about 45 years. This can be due to the fact that medical developments in the developed countries are so huge that there are cures for almost all types of ailments. So it results in higher life expectancy in developed countries. There life expectancy values are updated every year in all the countries. One may increase his life expectancy by avoiding risk factors and taking proper precautions. High Life expectancy is the one everybody desires, but many factors that involve in it also needs to be studied.