World faces challenge as technologies lengthen life expectancies, biologist says

In the 21st century, state-of-the-art anti-aging technologies may extend human lifespans at an unprecedented rate, bringing with them a host of social and economic challenges, says biologist Shripad Tuljapurkar of Stanford University.

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<p><a href="http://www.physorg.com/news11372.html">World faces challenge as technologies lengthen life expectancies, biologist says</a></p> <p>In the 21st century, state-of-the-art anti-aging technologies may extend human lifespans at an unprecedented rate, bringing with them a host of social and economic challenges, says biologist Shripad Tuljapurkar of Stanford University.</p>