Genetic influence on lifespan

https://academic.oup.com/genetics/article/210/3/1109/5931081 by Calico argues that life expectancy is inheritable by only ~10%.
In other words, 10% of variability of life expectancy can be attributed to DNA.
Naive correlation shows ~25%, most of this correlation remained between non-blood relatives as well thus showing the role of non-genetic confounders.

https://www.science.org/content/article/thirteen-million-degrees-kevin-bacon-world-s-largest-family-tree-shines-light-life-span
Here they claim that 16% of life expectancy variability is due to genetics.