not increase lifespan. (Lifespan was increased, however,
C. elegans
in mice on a high-fat diet supplemented with resveratrol.)
Understanding how to extend health span—apart
from its impact on longevity—is a growing focus of
many studies, and for good reason. Imagine a society
where a majority of people live to be 100, but along with
the added years comes considerably more physical decline.
While there is still a place for lifespan research, health
span research holds promise for revealing ways to delay