Not a very good trade-off

From the New York Times:

Writing in the January issue of The Journal of Gerontology B, the authors conclude that people live longer not because they are less likely to get sick, but because they survive longer with disease.

As a result, a 20-year-old man today can expect to live about a year longer than a 20-year-old in 1998, but will spend 1.2 years more with a disease, and 2 more years unable to function normally.