Scientists at the University of Florida have discovered a new method of observing the brain changes caused by Parkinson's disease, which destroys neurons important for movement. The development suggests that fluid changes ...
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Nurses on the bariatric surgery care team at a Connecticut hospital were having difficulty keeping track of patients' fluid intake after hospital admission. To standardize this process, and to avoid patient readmission following ...
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Legionnaires' disease is the disease is caused by bacterium called Legionella, which is found most often in fresh water. Symptoms include pneumonia and, in some cases, the infection can be deadly.
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Swimmer's itch is an itchy rash that can occur after you go swimming or wading outdoors. Also known as cercarial dermatitis, swimmer's itch is most common in freshwater lakes and ponds, but it occasionally occurs in salt ...
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(HealthDay)—It's high season for the painful infection known as swimmer's ear, but it shouldn't spoil your fun if you plan ahead.
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Clasping frail arms around his stomach, Machar Weituor doubles over in pain as he slowly positions himself over the hole in his bed. Too feeble to make it to the toilet, the 40-year-old groans faintly as he defecates into ...
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The U.N. health agency says there are now more than 200,000 suspected cases of cholera in an outbreak in war-torn Yemen, many of them children.
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"Several" participants at a medical conference at a hotel in Nairobi have come down with a foodborne disease suspected to be cholera, the Kenya Medical Association said Friday.
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Scientists are warning that a water treatment widely used in developing countries could be damaging the DNA of those drinking it.
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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.
This text uses material from Wikipedia, licensed under CC BY-SA
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