News tagged with water
A classic instinct -- salt appetite -- is linked to drug addiction
A team of Duke University Medical Center and Australian scientists has found that addictive drugs may have hijacked the same nerve cells and connections in the brain that serve a powerful, ancient instinct: ...
Medical research
Jul 11, 2011 |
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Sugar boosts self-control, study says
(Medical Xpress)—To boost self-control, gargle sugar water. According to a study co-authored by University of Georgia professor of psychology Leonard Martin published Oct. 22 in Psychological Science, a mouth rinse with g ...
Psychology & Psychiatry
Nov 07, 2012 |
3.5 / 5 (11) |
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BPA may affect the developing brain by disrupting gene regulation
Environmental exposure to bisphenol A (BPA), a widespread chemical found in plastics and resins, may suppress a gene vital to nerve cell function and to the development of the central nervous system, according ...
Medical research
Feb 25, 2013 |
5 / 5 (6) |
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Aesop's Fable unlocks how we think
(Medical Xpress) -- Cambridge scientists have used an age-old fable to help illustrate how we think differently to other animals.
Psychology & Psychiatry
Jul 25, 2012 |
3.9 / 5 (7) |
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We are drinking too much water: expert
Our bodies need about two litres of fluids per day, not two litres of water specifically. In an Editorial in the June issue of Australian and New Zealand Journal of Public Health, Spero Tsindos from La Trobe University, examin ...
Health
Jun 05, 2012 |
4.3 / 5 (6) |
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Google Earth typhoid maps reveal secrets of disease outbreaks
In the mid-nineteenth century, John Snow mapped cases of cholera in Soho, London, and traced the source of the outbreak to a contaminated water pump. Now, in a twenty-first century equivalent, scientists funded ...
Diseases, Conditions, Syndromes
Oct 16, 2011 |
4.6 / 5 (5) |
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Food allergies? Pesticides in tap water might be to blame
Food allergies are on the rise, affecting 15 million Americans. And according to a new study published in the December issue of Annals of Allergy, Asthma and Immunology, the scientific journal of the American College of All ...
Immunology
Dec 03, 2012 |
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Too much of a good thing? How drinking too much water can kill
Drinking enough water is very important during long periods of physical activity or recreational pursuits. But there are rare instances when too much fluid intake can be harmful, and even lead to death.
Health
Sep 28, 2012 |
5 / 5 (4) |
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Advice to drink 8 glasses of water a day 'nonsense,' argues doctor
The recommendation to drink six to eight glasses of water a day to prevent dehydration "is not only nonsense, but is thoroughly debunked nonsense," argues GP, Margaret McCartney in this week's BMJ.
Health
Jul 13, 2011 |
4.5 / 5 (4) |
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After PCs, Bill Gates sets out to reinvent WCs
The man who reinvented computers and made PCs a household item in most wealthy nations, Microsoft tycoon turned philanthropist Bill Gates, is now focusing his attention on recasting the WC.
Health
Jul 19, 2011 |
4.3 / 5 (4) |
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How the brain routes traffic for maximum alertness
A new UC Davis study shows how the brain reconfigures its connections to minimize distractions and take best advantage of our knowledge of situations.
Neuroscience
Jan 12, 2012 |
4 / 5 (4) |
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Research links water disinfection byproducts to adverse health effects
University of Illinois scientists report the first identification of a cellular mechanism linked to the toxicity of a major class of drinking water disinfection byproducts. This study, published in Environmental Sc ...
Health
Oct 24, 2011 |
5 / 5 (3) |
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A silver bullet to beat cancer?
The internet is awash with stories of how silver can be used to treat cancer. Now, lab tests have shown that it is as effective as the leading chemotherapy drug - and may have fewer side-effects.
Cancer
Feb 02, 2012 |
5 / 5 (3) |
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Food for thought: Ingredients and foods that give memory a boost
While there's no magic pill that protects and boosts memory, there are several foods that consumers can easily incorporate into their diets that can help.
Health
Jan 14, 2013 |
5 / 5 (3) |
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Researchers form new nerve cells—directly in the brain
The field of cell therapy, which aims to form new cells in the body in order to cure disease, has taken another important step in the development towards new treatments. A new report from researchers at Lund University in ...
Neuroscience
Mar 26, 2013 |
5 / 5 (3) |
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Water
Water is a ubiquitous chemical substance, composed of hydrogen and oxygen, that is essential for the survival of many known forms of life. In typical usage, water refers only to its liquid form or state, but the substance also has a solid state, ice, and a gaseous state, water vapor or steam. Water covers 71% of the Earth's surface. On Earth, it is found mostly in oceans and other large water bodies, with 1.6% of water below ground in aquifers and 0.001% in the air as vapor, clouds (formed of solid and liquid water particles suspended in air), and precipitation. Saltwater oceans hold 97% of surface water, glaciers and polar ice caps 2.4%, and other land surface water such as rivers, lakes and ponds 0.6%. A very small amount of the Earth's water is contained within biological bodies and manufactured products. Other water is trapped in ice caps, glaciers, aquifers, or in lakes, sometimes providing fresh water for life on land.
Water moves continually through a cycle of evaporation or transpiration (evapotranspiration), precipitation, and runoff, usually reaching the sea. Winds carry water vapor over land at the same rate as runoff into the sea. Over land, evaporation and transpiration contribute to the precipitation over land.
Clean, fresh drinking water is essential to human and other lifeforms. Access to safe drinking water has improved steadily and substantially over the last decades in almost every part of the world. There is a clear correlation between access to safe water and GDP per capita. However, some observers have estimated that by 2025 more than half of the world population will be facing water-based vulnerability. Water plays an important role in the world economy, as it functions as a solvent for a wide variety of chemical substances and facilitates industrial cooling and transportation. Approximately 70 percent of freshwater is consumed by agriculture.
For more information about Water, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
