Early screening methods offer a promising avenue to reduce mortality rates of cancer, notably through the analysis of biomarkers in liquid biopsies. Biologists have shown how the electrical detection of nucleic acids at the ...
The vagus nerve, known for its role in 'resting and digesting,' has now been found to have an important role in exercise, helping the heart pump blood, which delivers oxygen around the body.
Sep 27, 2023
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University of South Australia researchers are calling for exercise to be a mainstay approach for managing depression as a new study shows that physical activity is 1.5 times more effective than counseling or the leading medications.
Feb 24, 2023
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Two cases of bird flu in Cambodia, in a girl and her father, were not spread from one to the other.
Mar 3, 2023
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Chronic wounds are a major health problem for diabetic patients and the elderly—in extreme cases they can even lead to amputation. Using electric stimulation, researchers in a project at Chalmers University of Technology, ...
Apr 18, 2023
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There are currently 8 million patients with Parkinson's disease in the world.
May 5, 2023
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One in seven people in the US reported having had long COVID by the end of 2022, suggests a large-scale investigation of long COVID and symptom prevalence by academics at UCL and Dartmouth.
Nov 2, 2023
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Countries need to increase their taxes on alcohol and sugar-sweetened beverages, the World Health Organization said Tuesday, saying too few states were using tax to incentivize healthier behaviors.
Dec 5, 2023
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The amount of screen time spent by one-year-olds is associated with developmental delays. This finding, by researchers at Tohoku University, with collaborators at Hamamatsu University School of Medicine, was published in ...
Sep 2, 2023
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A new study has found that drugs to treat common infections in children and babies are no longer effective in large parts of the world, due to high rates of antibiotic resistance.
Oct 31, 2023
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In biology, an organism is any living system (such as animal, plant, fungus, or micro-organism). In at least some form, all organisms are capable of response to stimuli, reproduction, growth and development, and maintenance of homeostasis as a stable whole. An organism may either be unicellular (single-celled) or be composed of, as in humans, many billions of cells grouped into specialized tissues and organs. The term multicellular (many-celled) describes any organism made up of more than one cell.
The terms "organism" (Greek ὀργανισμός - organismos, from Ancient Greek ὄργανον - organon "organ, instrument, tool") first appeared in the English language in 1701 and took on its current definition by 1834 (Oxford English Dictionary).
Scientific classification in biology considers organisms synonymous with life on Earth. Based on cell type, organisms may be divided into the prokaryotic and eukaryotic groups. The prokaryotes represent two separate domains, the Bacteria and Archaea. Eukaryotic organisms, with a membrane-bounded cell nucleus, also contain organelles, namely mitochondria and (in plants) plastids, generally considered to be derived from endosymbiotic bacteria. Fungi, animals and plants are examples of species that are eukaryotes.
More recently a clade, Neomura, has been proposed, which groups together the Archaea and Eukarya. Neomura is thought to have evolved from Bacteria, more specifically from Actinobacteria.
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