He questions the value of human longevity and suggests that the most anyone can expect in life is "three good years."

The aim is to promote research which can offer insights into human longevity.

If so, what does the finding mean for the hopes of increasing human longevity?

I don't think we'd want to use his methods to increase human longevity.

The evidence that the sir2 gene may be involved in human longevity is indirect.

This leads to new approaches in understanding causes of exceptional human longevity.

No fixed theoretical limit to human longevity is apparent today.

Horizon was also working on human longevity and cancer medications, the article concluded.

Even today, no fixed theoretical limit to human longevity is apparent.

The potential for genetic technology to extend human longevity will become another way to stratify individuals and groups.