There are two measures which seem to be the focus of "longer life" aging research: 1. Increasing average lifespan. 2. Increasing maximum possible lifespan.

There are two measures which seem to be the focus of "longer life" aging research: 1. Increasing average lifespan. 2. Increasing maximum possible lifespan. This article deals with the first. I, and I would think most others, would be most interested in the second. I do recognize that the first is easier to achieve.