According to the National Center for Health Statistics the average life expectancy is 77.8 years old.
Factors contributing to life expectancy include blood pressure, diet, genetics and exercise.
According to the National Association of State Mental Health Program people with serious mental illness die 25 years earlier than the general public.
Andorra has the highest life expectancy in the world with the average of 83.5 years. This small country is bordered by Spain and France. Their diet consists of mostly plants and fish with little beef.
The CIA Factbook list countries with the lowest life expectancy to be in Africa. Many of these countries experience high rates of AIDS/HIV infections. Swaziland located in Southern Africa has the lowest life expectancy rate in the world with the average of 32.2 years. This is almost 40 percent below the world average.
To calculate your life expectancy try this Life Expectancy Calculator.
