Diseases, Conditions, Syndromes

Ethiopia must do more to stop recurring chikungunya outbreaks

Ethiopia's second largest city, Dire Dawa, is dealing with a chikungunya fever outbreak. Around 20,000 cases of the mosquito-borne viral infection have been reported since the outbreak started in March 2019. This is the second ...

Diseases, Conditions, Syndromes

1971 to 2017 saw 32 drinking water hepatitis A outbreaks

(HealthDay)—Thirty-two outbreaks of hepatitis A associated with drinking water were identified during 1971 to 2017, and all occurred before 2010, according to research published in the Sept. 6 issue of the U.S. Centers ...

Health

Fetching water increases risk of childhood death

Water fetching is associated with poor health outcomes for women and children, including a higher risk of death—according to new research from the University of East Anglia.

Health

Poor water quality linked to sugar drink consumption

Consumption of sugary drinks is common among Aboriginal and Torres Strait Islander infants and toddlers, and it could be down to water quality, according to a study from The Australian National University (ANU).

Dentistry

How often should I get my teeth cleaned?

If you went to your dentist for a check-up and dental clean in the last year, give yourself a pat on the back. Not everyone loves the dentist, but research shows people who visit at least once a year for preventative care ...

Health

Home remedies: How to treat, and prevent, swimmer's itch

Swimmer's itch is an itchy rash that can occur after 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 water.

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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.

This text uses material from Wikipedia, licensed under CC BY-SA