Aging | Psychological Factors Substantially Contribute to Biological Aging: Evidence From the Aging Rate in Chinese Older Adults
10-03-2022“We used the aging clock to demonstrate the connection between the physical and psychological aspects of aging”
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BUFFALO, NY- October 3, 2022 – A new research paper was published on the cover of Aging (listed as "Aging (Albany NY)" by Medline/PubMed and "Aging-US" by Web of Science) Volume 14, Issue 18, entitled, “Psychological factors substantially contribute to biological aging: evidence from the aging rate in Chinese older adults.”
Aging clocks are statistical models that enable measurements of biological age, as opposed to chronological age. While the latter is determined by one’s date of birth, the former depends on the intensity of aging processes and can be affected by genetics, life choices, and the environment. Most commonly, such aging clocks are regressors, trained to predict a person’s chronological age based on a vector of input parameters, such as clinical blood test results, gene expression levels, or DNA methylation intensities.
In a new study, researchers Fedor Galkin, Kirill Kochetov, Diana Koldasbayeva, Manuel Faria, Helene H. Fung, Amber X. Chen, and Alex Zhavoronkov from Deep Longevity, Stanford University, The Chinese University of Hong Kong, Insilico Medicine, and the Buck Institute for Research on Aging developed a deep learning aging clock using blood test data from the China Health and Retirement Longitudinal Study (CHARLS), which has a mean absolute error of 5.68 years.
“Using data from the Chinese CHARLS database, we have demonstrated that organismal aging is not only determined by physical factors but also, to a certain degree, affected by mental state and social status.”
The clock detects accelerated aging in people with heart, liver, and lung conditions. The researchers demonstrated that psychological factors, such as feeling unhappy or being lonely, add up to 1.65 years to one’s biological age, and the aggregate effect exceeds the effects of biological sex, living area, marital status, and smoking status. They concluded that the psychological component should not be ignored in aging studies due to its significant impact on biological age. The study findings further support the necessity of companionship and a psychologically pleasant environment for healthy longevity.
“We interpreted biological age as a proxy for the general state of health and show that positive feelings (happiness, hope, safety) have a significant impact on the former.”
DOI: https://doi.org/10.18632/aging.204264
Corresponding Author: Fedor Galkin - Email: fedor@deeplongevity.com
Keywords: psychological aging, lifespan psychology, aging clocks, longevity
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About Aging-US:
Aging publishes research papers in all fields of aging research including but not limited, aging from yeast to mammals, cellular senescence, age-related diseases such as cancer and Alzheimer’s diseases and their prevention and treatment, anti-aging strategies and drug development and especially the role of signal transduction pathways such as mTOR in aging and potential approaches to modulate these signaling pathways to extend lifespan. The journal aims to promote treatment of age-related diseases by slowing down aging, validation of anti-aging drugs by treating age-related diseases, prevention of cancer by inhibiting aging. Cancer and COVID-19 are age-related diseases.
Aging is indexed by PubMed/Medline (abbreviated as “Aging (Albany NY)”), PubMed Central, Web of Science: Science Citation Index Expanded (abbreviated as “Aging‐US” and listed in the Cell Biology and Geriatrics & Gerontology categories), Scopus (abbreviated as “Aging” and listed in the Cell Biology and Aging categories), Biological Abstracts, BIOSIS Previews, EMBASE, META (Chan Zuckerberg Initiative) (2018-2022), and Dimensions (Digital Science).
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