Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Employee with sleeping disorder has to work extra hard

16.06.2005


Dutch researcher Michel Varkevisser has discovered that chronic sleep complaints are associated with a reduced performance. This conclusion contradicts earlier findings. The researcher postulates that under normal daily circumstances, the lower performance level was probably not visible because the sleep sufferers invest extra energy in carrying out a task.



Research psychologist Michel Varkevisser investigated how sleeping problems affected the performances of employees under both laboratory and field conditions. In contrast to earlier findings, Varkevisser found that people who suffer from sleeping problems clearly performed less well when assessed under controlled laboratory conditions. This difference might be because Varkevisser is one of the few to have set up a completely-controlled laboratory experiment. In this set-up, posture, food intake and exposure to light were kept constant. Moreover the study subjects were not allowed to sleep over a 24-hour period.

After the controlled experiment, the researcher carried out a field study in which employees with several sleeping problems received a palmtop computer that contained three tests and a sleep diary. During this observation, the insomniacs reported a lot of subjective complaints such as tiredness, drowsiness, a worse mood and a reduced ability to concentrate. In contrast to the subjective complaints the researcher found no worsening in objective functioning.


The researcher concluded from this that if people with chronic sleeping complaints have to be self-reliant (under boring circumstances), they function less well. However under normal or semi-normal circumstances they can put extra effort into a task so that the performance level remains relatively high. As a result of this extra investment they seem to get on reasonably well at work but in the long term this has a detrimental effect on their physical well-being. Their mood worsens and they become excessively tired. This results in an increased chance of work absenteeism.

About 20 percent of the Dutch population regularly experience sleeping complaints and it is estimated that about 6 percent have chronic complaints. Interestingly sleeping problems are almost never considered as a possible causal factor in employee absenteeism. Moreover, many primary health care practitioners, such as GPs, company doctors, but also psychologists, do not consider sleeping problems to be a distinct disorder. Consequently they often fail to choose right treatment and do not refer the patient to a sleeping disorder centre on time.

Michel Varkevisser’s research was funded by NWO.

Dr Michel Varkevisser | alfa
Further information:
http://www.nwo.nl/nwohome.nsf/pages/NWOP_6CVF97_Eng

More articles from Health and Medicine:

nachricht Monitoring the heart's mitochondria to predict cardiac arrest?
21.09.2017 | Boston Children's Hospital

nachricht Highly precise wiring in the Cerebral Cortex
21.09.2017 | Max-Planck-Institut für Hirnforschung

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

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

Im Focus: Highly precise wiring in the Cerebral Cortex

Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.

The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...

Im Focus: Tiny lasers from a gallery of whispers

New technique promises tunable laser devices

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...

Im Focus: Ultrafast snapshots of relaxing electrons in solids

Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!

When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...

Im Focus: Quantum Sensors Decipher Magnetic Ordering in a New Semiconducting Material

For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.

Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...

Im Focus: Fast, convenient & standardized: New lab innovation for automated tissue engineering & drug

MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems Holding GmbH about commercial use of a multi-well tissue plate for automated and reliable tissue engineering & drug testing.

MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

Comet or asteroid? Hubble discovers that a unique object is a binary

21.09.2017 | Physics and Astronomy

Cnidarians remotely control bacteria

21.09.2017 | Life Sciences

Monitoring the heart's mitochondria to predict cardiac arrest?

21.09.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>