News tagged with saliva
(HealthDay)—A new Swedish study suggests that parents who want to protect their infants from developing allergies should try a simple approach to introducing their children to the wide world of microbes: ...
Immunology May 06, 2013 | 4.7 / 5 (13) | 2 |
Self-conscious about your age? Careful where you spit. UCLA geneticists now can use saliva to reveal how old you are.
Genetics Jun 22, 2011 | 3.7 / 5 (9) | 0 |
(Medical Xpress)—A new study indicates that a simple saliva test could be an effective tool in predicting violent behavior.
Psychology & Psychiatry Mar 26, 2013 | 3.7 / 5 (7) | 0 |
Researchers find negative social interactions can lead to increased amounts of internal inflammation
(Medical Xpress) -- Researchers from the University of California have found that negative social interactions can cause internal inflammation that may over time lead to possible health consequences. In the study, the results ...
Medical research Jan 24, 2012 | 5 / 5 (4) | 1 |
"Stand by me" is a common refrain when it comes to friendship but new research from Concordia University proves that the concept goes beyond pop music: keeping friends close has real physiological and psychological benefits.
Psychology & Psychiatry Jan 26, 2012 | 3.3 / 5 (3) | 0 |
A drug made from the saliva of the Gila monster lizard is effective in reducing the craving for food. Researchers at the Sahlgrenska Academy, University of Gothenburg, have tested the drug on rats, who after ...
Neuroscience May 15, 2012 | 5 / 5 (2) | 1
Why do so many sports players and athletes choose to wear the color red when they compete? A new study to be published in Psychological Science, a journal of the Association for Psychological Science, suggests that it may ...
Psychology & Psychiatry May 16, 2013 | 5 / 5 (2) | 1 |
A team of researchers at Kaiser Permanente and the University of California, San Francisco (UCSF) has identified a significant relationship between mortality and the length of telomeres, the stretches of DNA that protect ...
Genetics Nov 08, 2012 | 4.5 / 5 (2) | 0 |
New parents have one more reason to pay attention to the oral health of their toothless babies. A recent University of Illinois study confirms the presence of bacteria associated with early childhood caries ...
Health Aug 15, 2011 | 5 / 5 (1) | 1
A saliva test used to diagnose the human immunodeficiency virus (HIV), is comparable in accuracy to the traditional blood test, according to a new study led by the Research Institute of the McGill University Health Centre ...
HIV & AIDS Jan 24, 2012 | 5 / 5 (1) | 0 |
After waking up, the concentration of the stress hormone cortisol in saliva rises considerably; this is true not only for grown-ups but for babies as well. A research team from the Ruhr-Universität Bochum and from Basel ...
Psychology & Psychiatry Aug 28, 2012 | 5 / 5 (1) | 0
(AP)—Yosemite officials told 1,700 past visitors on Tuesday they may have been exposed to a rodent-borne disease already blamed for the deaths of two people who stayed in cabins at the national park.
Diseases, Conditions, Syndromes Aug 28, 2012 | 5 / 5 (1) | 0
The current outbreak of West Nile virus may prove to be the worst since the disease was first recorded in New York 13 years ago, and it shows no indication of slowing down. As of the beginning of this month, ...
Diseases, Conditions, Syndromes Sep 05, 2012 | 5 / 5 (1) | 0
Danish researchers have developed a new and sensitive method that makes it possible to diagnose malaria from a single drop of blood or saliva. The method might eventually be used in low-resource areas without ...
Medical research Nov 27, 2012 | 5 / 5 (1) | 0
Children of low socioeconomic status work harder to filter out irrelevant environmental information than those from a high-income background because of learned differences in what they pay attention to, according to new research ...
Psychology & Psychiatry Nov 28, 2012 | 5 / 5 (1) | 0 |
Saliva (also referred to as spit , spittle or slobber) is the watery and usually frothy substance produced in the mouths of humans and most other animals. Saliva is produced in and secreted from the salivary glands. Human saliva is composed mostly of water, but also includes electrolytes, mucus, antibacterial compounds, and various enzymes. As part of the initial process of food digestion, the enzymes in the saliva break down some of the starch and fat in the food at the molecular level. Saliva also breaks down food caught in the teeth, protecting them from bacteria that cause decay. Furthermore, saliva lubricates and protects the teeth, the tongue, and the tender tissues inside the mouth. Saliva also plays an important role in tasting food by trapping thiols produced from odourless food compounds by anaerobic bacteria living in the mouth.
Various species have evolved special uses for saliva that go beyond predigestion. Some swifts use their gummy saliva to build their nests. Some Aerodramus swiftlet nests are made only from saliva and used to make bird's nest soup. Cobras, vipers, and certain other members of the venom clade hunt with venomous saliva injected by fangs. Some arthropods, such as spiders and caterpillars, create thread from salivary glands.
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