Two views on extending human lifespan:

http://www.physorg.com/news/2010-12-longevity-breakthrough-metabolic-state-mitochondria.html

This one also:

http://www.physorg.com/news/2010-12-aging-gracefully.html

And this one:

http://www.boston.com/news/health/blog/2010/12/harvard_researc_6.html