Humans may not be able to turn back time, but a new research by USC and Yale researchers finds that Americans are slowing it down.
"This is the first evidence we have of delayed 'aging' among a national sample of Americans," said senior author Eileen M. Crimmins, University Professor and AARP Professor of Gerontology at the USC Leonard Davis School of Gerontology.
As noted in the study by Crimmins and lead author Morgan E. Levine, assistant professor at the Yale Center for Research on Aging: "A deceleration of the human aging process, whether accomplished through environment or biomedical intervention, would push the timing of aging-related disease and disability incidence closer to the end of life."
"While improvements may take time to manifest, and thus are more apparent at older ages, this could also signal problems for younger cohorts, particularly females, who--if their improvements are more minimal--may not see the same gains in life expectancy as experienced by the generations that came before them," said Levine, who received both her PhD in Gerontology in 2015 and her BA in Psychology in 2008 from USC.
Slowing the pace of aging, along with increasing life expectancy, has important social and economic implications. The study suggests that modifying health behaviors and using prescription medications does indeed have significant impact on the health of the population.
"Life extension without changing the aging rate will have detrimental implications. Medical care costs will rise, as people spend a higher proportion of their lives with disease and disability," Levine said. "However, lifespan extension accomplished through a deceleration of the aging process will lead to lower healthcare expenditures, higher productivity, and greater well-being."