News tagged with water
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 | 4.8 / 5 (11) | 4 |
(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) | 3 |
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) | 1 |
(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) | 10 |
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) | 1
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) | 0 |
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 | 4.2 / 5 (5) | 2 |
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) | 1
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) | 0 |
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) | 0
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) | 2 |
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) | 0 |
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) | 0 |
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) | 0
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) | 0 |
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
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