Heritability = a statistical description of sources of interindividual variation in a specific set of people under a specific set of environmental conditions. It doesn't index a fixed underlying feature of human biology. A few lines in this paper acknowledge that but its overall framing may mislead.
Heritability of intrinsic human life span is about 50% when confounding factors are addressed
How heritable is human life span? If genetic heritability is high, longevity genes can reveal aging mechanisms and inform medicine and public health. However, current estimates of heritability are low...
