Science, Space and Technology News 2024
A study by Columbia University reveals that experiencing familial losses, especially multiple times or during early life stages, is linked to faster biological aging, as evidenced by changes in DNA markers. Credit: SciTechDaily.comindicates that losing close family members can accelerate biological aging.
“Few studies have looked at how losing a loved one at different stages of life affects these DNA markers, especially in study samples that represent the U.S .population,” said Allison Aiello, PhD, the James S. Jackson professor of health longevity in Epidemiology and the study’s lead author. “Our study shows strong links between losing loved ones across the life course from childhood to adulthood and faster biological aging in the U.S.
To measure familial loss during childhood or adolescence from the longitudinal study, Aiello and colleagues followed participants through various waves, and aging timeframes. Wave I surveyed 20,745 adolescents in grades 7-12, most of whom were aged 12-19. Participants have been followed ever since. Wave V took place between 2016 and 2018 and completed interviews with 12,300 of the original participants.
People who experienced two or more losses had older biological ages according to several epigenetic clocks. Experiencing two or more losses in adulthood was more strongly linked to biological aging than one loss and significantly more so than no losses.“The connection between losing loved ones and health problems throughout life is well-established,” Aiello noted.
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