How Much Can Human Life Span Be Extended?

Science  01 Jul 2005:
Vol. 309, Issue 5731, pp. 83
DOI: 10.1126/science.309.5731.83

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Life-span extension in species from yeast to mice and extrapolation from life expectancy trends in humans have convinced a swath of scientists that humans will routinely coast beyond 100 or 110 years of age. Others say human life span may be far more limited.