Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Stress in middle age could contribute to late life dementia

16.08.2010
Helena AabergPsychological stress in middle age could lead to the development of dementia later in life, especially Alzheimer’s disease, reveals research from the University of Gothenburg, Sweden. Based on data from a study which followed women for 35 years, this is the first research in Sweden to indicate a link between stress and dementia.

The research, published in prestigious scientific journal Brain, is based on a major population study of women from Gothenburg. A representative sample of women were examined for the first time in 1968 when aged between 38 and 60, and then re-examined in 1974, 1980, 1992 and 2000.

A question about psychological stress was included in the 1968, 1974 and 1980 surveys and was answered by 1,415 women.

“Stress was defined as a sense of irritation, tension, nervousness, anxiety, fear or sleeping problems lasting a month or more due to work, health, family or other problems,” explains Lena Johansson, a researcher from the Neuropsychiatric Epidemiology Unit at the Sahlgrenska Academy’s Department of Psychiatry and Neurochemistry at the University of Gothenburg.

During the 35 years of the study, 161 of the participants developed dementia, mainly in the form of Alzheimer’s disease. The risk of dementia was about 65% higher in women who reported repeated periods of stress in middle age than in those who did not. In women who reported stress in all three surveys, the risk more than doubled.

“This is the first study to show that stress in middle age can lead to dementia in old age, and confirms similar findings from studies of animals. Stress has previously been shown to increase the risk of cardiovascular diseases such as stroke, heart attack and hypertension,” says Johansson, who also refers to earlier research at the Sahlgrenska Academy showing that cardiovascular disease can lead to Alzheimer’s.

“This study could result in a better understanding of the risk factors for dementia, but our results need to be confirmed by other studies, and further research is needed in the area. Most of those who said that they were stressed did not develop dementia, so it’s not currently possible to advise people to be less stressed or warn about the dangers of high stress levels due to an increased risk of developing dementia.”

DEMENTIA
Dementia is a deterioration of the intellect, memory and personality. It results from disorders and damage that affect the brain, including Alzheimer’s disease. Symptoms include forgetfulness, impaired speech and emotional blunting. Dementia is common in Sweden, increasingly so as we get older. It is estimated that around 7% of the Swedish population over the age of 65 and just over 20% of the over-80s have severe dementia.
For more information, please contact:
Lena Johansson, PhD student, tel: +46 31 343 86 47, +46 70 938 53 24, e-mail:lena.johansson@neuro.gu.se

Ingmar Skoog, professor, tel: +46 709 43 36 81, e-mail: ingmar.skoog@neuro.gu.se

Helena Aaberg | idw
Further information:
http://brain.oxfordjournals.org/cgi/content/abstract/133/8/2217

Further reports about: Alzheimer beruflicher Stress cardiovascular disease risk factor

More articles from Studies and Analyses:

nachricht Drone vs. truck deliveries: Which create less carbon pollution?
31.05.2017 | University of Washington

nachricht New study: How does Europe become a leading player for software and IT services?
03.04.2017 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

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...

Im Focus: Climate satellite: Tracking methane with robust laser technology

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...

Im Focus: How protons move through a fuel cell

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...

Im Focus: A unique data centre for cosmological simulations

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...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

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)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Quantum thermometer or optical refrigerator?

23.06.2017 | Physics and Astronomy

A 100-year-old physics problem has been solved at EPFL

23.06.2017 | Physics and Astronomy

Equipping form with function

23.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>