interesting article in Washington Post:
https://www.washingt...26c5_story.html
"Research suggests that about 25 percent of longevity is determined by genes"
“In my opinion, there is a fundamental aging process — the true root cause of aging,” Horvath said. “We are currently designing a large human study that will test to what extent epigenetic changes underlie this process.”
“There’s been 20 years of research, and the field has learned that telomere shortening plays a role in aging. But it is not the fundamental cause of aging,” Horvath, the genetics professor, said. “We can debate how important it is.”