People who considered their lives to be stressful at the start of the 1970s today suffer more often from chronic fatigue than others. The study was carried out with data from the Swedish Twin registry.
Chronic fatigue is a condition characterised by long-lasting and abnormal exhaustion, often accompanied by concentration impairment, mood swings, insomnia and pain in the muscles and joints. Despite extensive research, no root causes have been identified; all that scientists know so far is that it seems to appear across all ages and social classes in many different countries.
A research group from Karolinska Institutet has now been able to show that one of the direct causes of chronic fatigue is stress. Using the results from a health survey conducted amongst almost 20,000 twins from the Swedish Twin registry in 1973 and of a repeat survey of the same population in 1998 (which contained questions about chronic fatigue), the researchers found that the group who claimed to have stressful lives 25 years previously ran a 65 per cent greater chance of developing chronic fatigue than those who did not.
The scientists also noted a correlation between emotional instability and chronic fatigue. By limiting the analysis to identical twins, the researchers were able to dismiss any causal relationship. Instead, the correlation should be interpreted as there being genetic factors that are important for both emotional instability and chronic fatigue. Using the same method, the team has been able to show that stress does actually have a direct impact on the risk of developing chronic fatigue.
“This is a very important step towards understanding a disease that we know very little about,” says Professor Nancy Pedersen, who has led the study. “Before we can develop effective treatments, we have to understand the underlying mechanisms.”Publication:
Katarina Sternudd | alfa
Routing gene therapy directly into the brain
07.12.2017 | Boston Children's Hospital
New Hope for Cancer Therapies: Targeted Monitoring may help Improve Tumor Treatment
01.12.2017 | Berliner Institut für Gesundheitsforschung / Berlin Institute of Health (BIH)
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
An interdisciplinary group of researchers interfaced individual bacteria with a computer to build a hybrid bio-digital circuit - Study published in Nature Communications
Scientists at the Institute of Science and Technology Austria (IST Austria) have managed to control the behavior of individual bacteria by connecting them to a...
Physicists in the Laboratory for Attosecond Physics (run jointly by LMU Munich and the Max Planck Institute for Quantum Optics) have developed an attosecond electron microscope that allows them to visualize the dispersion of light in time and space, and observe the motions of electrons in atoms.
The most basic of all physical interactions in nature is that between light and matter. This interaction takes place in attosecond times (i.e. billionths of a...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
11.12.2017 | Physics and Astronomy
11.12.2017 | Earth Sciences
11.12.2017 | Information Technology