A new study published yesterday implies that carbon nanotubes may behave like asbestos when being inhaled in particular quantities. Similar to asbestos, carbon nanotubes may triggers a form of lung cancer known as mesothelioma, which appears within three to four decades after the exposure. Simply put, the study says ... |
21 May 2008
08:10 GMT |
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Tooth loss is not only very unappealing, it is also extremely unhealthy: a new research study published in the Cancer Epidemiology, Biomarkers and Prevention journal found a tight connection between tooth loss and increasing risks of developing 3 forms of cancer (esophageal, head and neck, and lung). Until now, the ... |
14 May 2008
16:41 GMT |
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So far, scientists have known about some salamanders (of the family Plethodontidae) and caecilians (worm-like amphibians) that had lost their lungs. Now they can add a frog on the list of lungless tetrapod vertebrates: the Kalimantan jungle toad (Barbourula kalimantanensis). This amphibian takes all the oxygen it ne... |
8 April 2008
03:56 GMT |
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You cannot imagine life without popcorn. Watching a movie is directly connected to a huge bag of popcorn and beer, or cola soda. But besides the obesity and metabolic syndrome induced by such habits and caused by the large amounts of ingested calories, the effect can be more directly harmful: popcorn consume can caus... |
17 March 2008
04:01 GMT |
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What makes crocodiles and alligators so feared is not only their sheer power and enormous toothed jaws, but also the stealth of their attacks: there's no ripple warning the victim that the huge monster is approaching until the quick deadly dash. Researchers have been puzzled at the smoothness of their movement i... |
15 March 2008
06:57 GMT |
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Each year, 4 million people die because of diseases caused by tobacco smoking, one person every 8 seconds. Tobacco smoking is the most important cause of diseases worldwide. If the current tendency is maintained, by 2020 smoking will kill more persons than AIDS, tuberculosis, maternal mortality, car accidents, suicid... |
29 February 2008
03:20 GMT |
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Oxygen enters into our bloodstream through the lungs, while the toxic carbon dioxide is also expelled through them. We call this process breathing. The lungs have a system of tubes called bronchia. Bronchia ramify into gradually smaller tubes that can be as thin as a human hair. At the end of the thinnest tubes, call... |
14 January 2008
14:06 GMT |
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This is turning into a birth choice. Cesarean sections keep the "toy" intact and remove many risks and complications. But, here comes the warning signal: it can make babies vulnerable to breathing issues, up to four times more than those born naturally. These are the results of a Danish research at University of Aarh... |
17 December 2007
04:32 GMT |
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She can consider herself lucky because had she been conceived in these times, her mother would have had an abortion. Chinese doctors have found 26 sewing needles inside the body of Luo Cuifen, a 31-year-old woman. They suspect they were inserted into the woman's body when she was a newborn by her grandparents be... |
7 September 2007
16:56 GMT |
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The name 'sildenafil citrate' probably doesn't say much to anybody, but its commercial name, Viagra, sounds like the most famous anti-impotence drug for men. But Viagra is also sold as a drug against pulmonary hypertension. Besides Viagra, there are also other two more recent ED (erectile dysfunction) ... |
27 July 2007
14:16 GMT |
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Cannabis contains most of the chemicals of a tobacco cigarette, but the damage induced to the lungs can be higher. A 2002 report of the British Lung Foundation showed that 3-4 cannabis cigarettes daily induced the same damage to the lungs as over 20 tobacco cigarettes. But researchers find it difficult to separate th... |
4 June 2007
04:52 GMT |
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Cilia is Latin for "eyelash", and they are thin, tail-like projections extending approximately 5-10 micrometers outwards from the body of a cell.Eukaryotes, single-celled organisms, use cilia to move through liquid. In humans, they are found in the lining of the trachea (windpipe), where they sweep mucus and dirt ou... |
13 April 2007
09:24 GMT |
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