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Fatigue (physical)
Fatigue is a state, following a period of mental or physical activity, characterized by a lessened capacity for work and reduced efficiency of accomplishment, usually accompanied by a feeling of weariness, sleepiness, or irritability.
Note: The above text is excerpted from the Wikipedia article "Fatigue (physical)", which has been released under the GNU Free Documentation License.
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Science News
October 6, 2024
Oct. 4, 2024 A study determines when and how pterosaurs went from tiny tree-climbers to towering terrestrial titans Flying reptiles first came down from the trees in the mid-Jurassic Period, paving the way for giants with 10-meter wingspans. Fingers and toes ...
Oct. 3, 2024 Pockets of microbes have been found living within a sealed fracture in 2-billion-year-old rock. The rock was excavated from the Bushveld Igneous Complex in South Africa, an area known for its rich ore deposits. This is the oldest example of living ...
Oct. 3, 2024 According to a new study, colonies of ants began farming fungi when an asteroid struck Earth 66 million years ago. This asteroid impact caused a global mass extinction but also created ideal ...
Oct. 3, 2024 The extinction of hundreds of bird species caused by humans over the last 130,000 years has led to substantial reductions in avian functional diversity -- a measure of the range of different roles ...
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Sep. 26, 2024 A time-delay circuit enables precise control over the division of synthetic DNA droplets, which mimic biological Liquid-Liquid Phase Separation ...
Sep. 19, 2024 Researchers have uncovered a fascinating mechanism behind the reduction and asymmetry of emu wing bones. The wings not only show significant shortening, but the skeletal elements also fuse ...
Sep. 30, 2024 To keep weight in check, it is not only important to consider what we eat, but also the times at which we eat. According to a new study, there are ...
Oct. 2, 2024 By studying rare fossils of jaws and other skull parts of a long-extinct Caribbean monkey, a team of researchers says it has uncovered new evidence ...
Oct. 2, 2024 A new thought piece highlights the challenges facing healthcare researchers and decision makers in the quest to improve population health in a constantly evolving healthcare landscape. The authors ...
Oct. 1, 2024 Using a sophisticated brain-imaging system, neuroscientists say they have successfully reactivated a specific memory circuit in mice, causing them to ...
Oct. 1, 2024 Six epigenetic features define the new Epigenetic Hallmarks of Cancer, an add-on to the widely accepted Hallmarks of Cancer. Scientists concluded that malignant transformation requires some degree of ...
Oct. 4, 2024 A research team has revealed that a molecule in the brain -- ophthalmic acid -- unexpectedly acts like a neurotransmitter similar to dopamine in regulating motor function, offering a new therapeutic ...
Oct. 4, 2024 The University of Cincinnati's Debanjan Bhattacharya is first author of new research published in Cancers that found the drug AM-101 improves the ...
Oct. 4, 2024 Genome instability can cause numerous diseases. Cells have effective DNA repair mechanisms at their disposal. A research team has now gained new insights into the DNA damage ...