But this negative view of aging contrasts with results of a comprehensive study of 1,006 older adults in San Diego by researchers from the University of California, San Diego School of Medicine and Stanford University. Results of the Successful Aging Evaluation (SAGE) study – comprising a 25-minute phone interview, followed by a comprehensive mail-in survey – will be published in the December 7 online issue of the American Journal of Psychiatry.
"While there is a growing public health interest in understanding and promoting successful aging, until now little published research has combined measures of physical health with cognitive and psychological assessments, in a large and randomly selected sample," said principal investigator Dilip V. Jeste, MD, Estelle and Edgar Levi Chair in Aging, Distinguished Professor of Psychiatry and Neurosciences, and director of UC San Diego's Stein Institute for Research on Aging, and the current President of the American Psychiatric Association (which was not involved in this study).
The SAGE study included adults between the ages of 50 and 99 years, with a mean age of just over 77 years. In addition to measures which assessed rates of chronic disease and disability, the survey looked at more subjective criteria such as social engagement and participants' self-assessment of their overall health.
"Sometimes the most relevant outcomes are from the perspective of the subjects themselves," said Jeste.
The study concludes that resilience and depression have significant bearing on how individuals self-rate successful aging, with effects that are comparable to that of physical health. "Even though older age was closely associated with worse physical and cognitive functioning, it was also related to better mental functioning," said co-author Colin Depp, PhD, associate professor of psychiatry at UC San Diego School of Medicine.
After adjusting for age, a higher self-rating of successful aging was associated with higher education, better cognitive function, better perceived physical and mental health, less depression, and greater optimism and resilience.
Participants were asked to rate the extent to which they thought they had "successfully aged," using a 10-point scale and using their own concept of the term. The study found that people with low physical functioning but high resilience, had self-ratings of successful aging similar to those of physical healthy people with low resilience. Likewise, the self-ratings of individuals with low physical functioning but no or minimal depression had scores comparable to those of physically healthy people with moderate to severe depression.
"It was clear to us that, even in the midst of physical or cognitive decline, individuals in our study reported feeling that their well-being had improved with age," Jeste said. This counterintuitive increase in well-being with aging persisted even after accounting for variables like income, education and marriage.
Jeste suggests there's a take-away message for clinicians, which is that an optimistic approach to the care of seniors may help reduce societal ageism. "There is considerable discussion In public forums about the financial drain on the society due to rising costs of healthcare for older adults – what some people disparagingly label the 'silver tsunami.' But, successfully aging older adults can be a great resource for younger generations," he said.
The findings point to an important role for psychiatry in enhancing successful aging in older adults. "Perfect physical health is neither necessary nor sufficient," Jeste said. "There is potential for enhancing successful aging by fostering resilience and treating or preventing depression."
Additional contributors to this study include Gauri N. Savla, PhD, Wesley K. Thompson, PhD, Ipsit V. Vahia, MD, Danielle K. Glorioso, MSW, A'verria Sirkin Martin, PhD, Barton W. Palmer, PhD, David Rock, BA, and Shahrokh Golshan, PhD, UC San Diego; and Helena C. Kraemer, PhD, professor of biostatistics in psychiatry at Stanford University.
This work was supported, in part, by NIMH grants T32 MH-019934 and P30 MH-066248, by NIH National Center for Research Support grant UL1 RR-031980, by the John A. Hartford Foundation, and by the Sam and Rose Stein Institute for Research on Aging.
Debra Kain | EurekAlert!
Drone vs. truck deliveries: Which create less carbon pollution?
31.05.2017 | University of Washington
New study: How does Europe become a leading player for software and IT services?
03.04.2017 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)
An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.
Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...
Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.
Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...
Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.
As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...
Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.
With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...
Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine
Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...
19.06.2017 | Event News
13.06.2017 | Event News
13.06.2017 | Event News
23.06.2017 | Physics and Astronomy
23.06.2017 | Physics and Astronomy
23.06.2017 | Information Technology