Humans May Already Have Achieved Longest LifespanA new study concludes that in parts of the world, we literally may be living as long as humanly possible.In the West, the average lifespan is 80. The authors of a study published Wednesday in Nature say data strongly suggest that may be about as good as it gets. In fact, the study suggests the maximum human lifespan may have been achieved in the 1990s.The average life expectancy rose dramatically from the end of the 19th century and through the 20th, almost on a continuous basis, thanks to medical advancements and improvements in public health. In the United States, the average lifespan increased from 47 years at the turn of the last century to 79 years for the average baby born today.Researchers at the Albert Einstein College of Medicine in New York based their study on data from the Human Mortality Database, which compiles the mortality and population records of more than 40 countries dating back to 1900.
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