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life expectancy |
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life expectancyAverage lifespan that can be presumed of a person at birth. It depends on nutrition, disease control, environmental contaminants, war, stress, and living standards in general. There is a marked difference between industrialized countries, which generally have an ageing population, and the poorest countries, where life expectancy is much shorter. In Malawi, life expectancy is currently 42; in Nigeria 47; in Ethiopia 49. In Zambia, the AIDS epidemic brought the life expectancy down to a record 33 years, according to government figures released in 2003.
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Have students search the almanac for countries with life expectancies in the 40s. The study, published in the online science journal PLoS Medicine, found more than 30 years separate Americans with the greatest life expectancies from those with the lowest. Insureds' life expectancies range from three to 15 or more years, and prices paid for the policies are determined by underwriting. |
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