An animal study finds a link in genetics that determines our sleep patterns
Are you annoyed by cheerful "morning people?" Do you ever wonder how "night owls" can keep going? Most of us ask these questions because we are in between these two extremes, and take a while to get going early in the morning and tire long before midnight. This entire spectrum reflects the broad, normal variation in sleep patterns in humans that is rooted in the very genetic foundations of how our body works. Because these variations occur within our population and differ with age, the presumption exists that the differences in sleep patterns are controlled by complex mechanisms with contributions from multiple genes and influenced by environmental factors.
Linking our genetic make-up and sleep related disorders require data that compare genetic differences that might explain the basis of sleep disorders. Knowing what causes these disorders is important -- getting a good night sleep is now a challenge for some 50 to 70 millions American of all ages. A 2002 National Sleep Foundation annual survey reported that nearly 40 percent of adults 30 to 64 years old, and 44 percent of those age 18 to 29, reported that daytime sleepiness is so severe that it interferes with work and social functioning at least a few days each month. Excessive daytime sleepiness has been blamed on interference in cognitive functioning, motor vehicle crashes (especially at night), poor job performance and reduced productivity. While researchers have learned much about the basic mechanism underlying the control of sleep and its importance on our daily function and health, they have only just begun to examine the complex genetic and environmental interactions that shape sleep and health.
Donna Krupa | EurekAlert!
Risk taking across the life span: The effects of hardship
08.01.2016 | Max-Planck-Institut für Bildungsforschung
Using social media for professional purposes – does it pay off?
08.12.2015 | Leibniz-Institut für Wissensmedien
Automobiles increase the mobility of their users. However, their maneuverability is pushed to the limit by cramped inner city conditions. Those who need to...
Advance in biomedical imaging: The University of Würzburg's Biocenter has enhanced fluorescence microscopy to label and visualise up to nine different cell structures simultaneously.
Fluorescence microscopy allows researchers to visualise biomolecules in cells. They label the molecules using fluorescent probes, excite them with light and...
NASA's follow-on to the successful ICESat mission will employ a never-before-flown technique for determining the topography of ice sheets and the thickness of sea ice, but that won't be the only first for this mission.
Slated for launch in 2018, NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) also will carry a 3-D printed part made of polyetherketoneketone (PEKK),...
In the last decades, sea level has been rising continuously – about 3.3 mm per year. For reef islands such as the Maldives or the Marshall Islands a sinister picture is being painted evoking the demise of the island states and their cultures. Are the effects of sea-level rise already noticeable on reef islands? Scientists from the ZMT have now answered this question for the Takuu Atoll, a group of Pacific islands, located northeast of Papua New Guinea.
In the last decades, sea level has been rising continuously – about 3.3 mm per year. For reef islands such as the Maldives or the Marshall Islands a sinister...
The ‘Internet of Things’ is growing rapidly. Mobile phones, washing machines and the milk bottle in the fridge: the idea is that minicomputers connected to these will be able to process information, receive and send data. This requires electrical power. Transistors that are capable of switching information with a single electron use far less power than field effect transistors that are commonly used in computers. However, these innovative electronic switches do not yet work at room temperature. Scientists working on the new EU research project ‘Ions4Set’ intend to change this. The program will be launched on February 1. It is coordinated by the Helmholtz-Zentrum Dresden-Rossendorf (HZDR).
“Billions of tiny computers will in future communicate with each other via the Internet or locally. Yet power consumption currently remains a great obstacle”,...
02.02.2016 | Event News
26.01.2016 | Event News
26.01.2016 | Event News
05.02.2016 | Life Sciences
05.02.2016 | Materials Sciences
05.02.2016 | Physics and Astronomy