question: Why does water taste amazing when you're dehydrated and okay when you're hydrated?
comment: The direct cause is most likely a craving, but the cause of a craving (for water, or anything) is technically unknown. Fulfilling any craving triggers a pleasure response in your brain. When dehydrated, your brain will trigger the pleasure response, but when you're hydrated, there is a reduced response. There are studies that provide various reasons for this phenomenon. One answer is that your body has an evolutionary response that triggers cravings when it lacks certain nutrients. "Pica" is a craving for things that are not usually edible, such as dirt or detergent. This is most often found in pregnant women, and scientists have suggested that it's the body's response to fluctuating hormone levels requiring different nutrients to maintain homeostasis. In the case of dehydration, your body may understand that drinking water or other liquids plays a similar role. That said, there is additional scientific evidence that suggests cravings are not triggered by an imbalance of nutrients, and water isn't even technically a nutrient. Another potential explanation is heat dissipation. Imagine your brain is a liquid-cooled computer processor (because it is). If there is not enough liquid, the temperature of the system will slowly rise, causing processor lag and potential catastrophic failure. Dehydration works the same way, so adding cool liquid into the system might speed up the system again, triggering the pleasure pathway.
passages: Pure water is usually described as tasteless and odorless, although humans have specific sensors that can feel the presence of water in their mouths, and frogs are known to be able to smell it. However, water from ordinary sources (including bottled mineral water) usually has many dissolved substances, that may give it varying tastes and odors. Humans and other animals have developed senses that enable them to evaluate the potability of water by avoiding water that is too salty or putrid.
  
  Section::::Chemical and physical properties.:Color and appearance.
   But which can quench my thirst the way you do?
  
  You’re the flow of milk in my homeland’s breasts.
  
  Will I meet you ever? As long as you
  
  Go to kinglike ocean to pay the tax
  
  Of water, I beg to you, sing my name
  
  Into the ears of people of Bengal,
  
  Sing his name, o dear, who in this far land
  
  Sings your name in all his songs for Bengal.
  
  /poem
   is based on the natural and non-destructive phenomenon of osmosis across cell membranes. The driving force for the diffusion of water from the tissue into the solution is provided by the higher osmotic pressure of the hyper-tonic solution. The diffusion of water is accompanied by the simultaneous counter diffusion of solutes from the osmotic solution into the tissue. Since the cell membrane responsible for osmotic transport is not perfectly selective, solutes present in the cells (organic acids, reducing sugars, minerals, flavors and pigment compounds) can also be leaked into the osmotic solution, which affects the organoleptic and nutritional characteristics of the product.
   Section::::Reception.:Soundtrack.
  
  The soundtrack of "Where the Water Tastes Like Wine" gained praise as an authentic representation of Americana: The 30-track compilation spans folk, jazz, country, blues, bluegrass, and more. The soundtrack was licensed and released by video game music label Materia Collective. A limited edition vinyl was pressed by Laced Records.
   Sikhs use the Punjabi term "amrita" (ਅੰਮ੍ਰਿਤ) for the holy water used in the baptism ceremony known as "Amrit Sanskar" or "Amrit Chhakhna".
  
  In Hinduism, water represents God in a spiritual sense which is the central theme in Mantra Pushpam from Taithreeya Aranyakam of Yajur Veda. Bathing in holy water is, thus, a key element in Hinduism, and the Ganges is considered the holiest Hindu river.
   Section::::Detection.:Decreased volume.
   Section::::Reception.
   BULLET::::7. "You Left The Water Running" — Booker T & The MG's (1965)
  
  BULLET::::8. "Pouring Water On A Drowning Man" — James Carr (1966)
  
  BULLET::::9. Cold Dark Waters — Porter Wagoner & The Wagonmasters (1962)
  
  BULLET::::10. I’d Rather Drink Muddy Water — The Cats and The Fiddle (1940)
  
  BULLET::::11. Louisiana 1927 — Randy Newman (1974)
  
  BULLET::::12. Cool Drink Of Water Blues — Tommy Johnson (1929)
  
  BULLET::::13. I Asked For Water, She Brought Me Gasoline — Howlin’ Wolf (1956)
  
  BULLET::::14. Dirty Water — The Standells (1966)
  
  BULLET::::15. Jesus Gave Me Water — The Five Blind Boys of Mississippi (1950)
   Director Deepa Mehta commented about the soundtrack: "The music that has been created for Water is simply breath-taking…It has the makings of a phenomenal soundtrack." "Water was a wonderful experience. I didn’t even realize I was singing for a film or that A.R. Rahman was recording a song. I sang all the variations I could conceive of. It was like rediscovering myself", said Kaushiki Chakrabarty who sang one of the songs.
   Section::::Reception and Track Listing.
   BULLET::::- Bhagath Manuel as Appu
  
  BULLET::::- Govind Krishna as Kiran
  
  BULLET::::- Archana Gupta as Reshmi Susan Mathew
  
  BULLET::::- Shritha Sivadas as Sanjana
  
  BULLET::::- Vaishali Vasu as Priya
  
  BULLET::::- Sreekanth Bhasi as Jacky/Janardhanan
  
  BULLET::::- Dileesh Pothan as Krishnakumar
  
  BULLET::::- Reena Basheer as Molly
  
  BULLET::::- Jose as Rakhavji/Rakhavan
  
  BULLET::::- Pradeep as Shebin
  
  BULLET::::- Sanju Bhaskar as Sanju
  
  BULLET::::- Sunder as Sunder
  
  BULLET::::- Kottayam Basheer as Jermiyyas
  
  Section::::Music.
  
  The film's original soundtrack and film score was composed by Mejo Joseph. The soundtrack comprises seven songs. All songs were released by Muzik 247 in 2014.
   As far as reporting on the use of the water is concerned Patrick reports that it has been quoted by Patterson (1964) as being a type of "holy water" that is used for purification in revival ceremonies. Quoting Patterson "male church leader, Shepherd John, cleansing a sinful woman: "'Bring de robe an' de cananga water an' call de Water Mother.' The period of cleansing began with a purity bath. [Shepherd John] sprinkled some of the cananga water over the room, then poured the rest in the tub. Then the water mother came forward, helped her in the tub, and bathed her from the neck downwards."
   Unlike osmotic pressure, tonicity is influenced only by solutes that cannot cross the membrane, as only these exert an effective osmotic pressure. Solutes able to freely cross the membrane do not affect tonicity because they will always equilibrate with equal concentrations on both sides of the membrane without net solvent movement. It is also a factor affecting imbibition.
  
  There are three classifications of tonicity that one solution can have relative to another: "hypertonic", "hypotonic", and "isotonic".
  
  Section::::Hypertonic Solution.
   From the data and observation, the best water for drinking is the water from a nearby river. However, further data must be collected over a longer period of time. Also, bacterial and microbial tests need to be completed.
  
  Section::::Current developments.
   Dogs have around 1,700 taste buds compared to humans with around 9,000. The sweet taste buds in dogs respond to a chemical called furaneol which is found in many fruits and in tomatoes. It appears that dogs do like this flavor and it probably evolved because in a natural environment dogs frequently supplement their diet of small animals with whatever fruits happen to be available. Because of dogs' dislike of bitter tastes, various sprays, and gels have been designed to keep dogs from chewing on furniture or other objects. Dogs also have taste buds that are tuned for water, which is something they share with other carnivores but is not found in humans. This taste sense is found at the tip of the dog's tongue, which is the part of the tongue that he curls to lap water. This area responds to water at all times, but when the dog has eaten salty or sugary foods the sensitivity to the taste of water increases. It is proposed that this ability to taste water evolved as a way for the body to keep internal fluids in balance after the animal has eaten things that will either result in more urine being passed or will require more water to adequately process. It certainly appears that when these special water taste buds are active, dogs seem to get an extra pleasure out of drinking water, and will drink copious amounts of it.
   Section::::Speciality.
  
  Timiri Pashana lingam cannot be found anywhere else. It is not a mere lingam but one with special radiations that can travel great distances. The medicinal property of the water from sacred ablution (abisheka theerta) of the pashana lingam grants the state of makaara in the heart, corrects heart's function, kidney diseases and grants several benefits in life. As the lingam is created using Timiri pashanam, it can sublime. Hence, water is trickled over it continuously to keep it cool. Those who consume this sacred water are blessed with physical and mental well being.
   Section::::Drinking water.
   Section::::Detection.:Decreased volume.:Renin-angiotensin system.
   BULLET::::- "Water" (2005 film), an Oscar-nominated Canadian drama film set in India and directed by Deepa Mehta
  
  BULLET::::- "Water" (2006 film), a documentary
  
  BULLET::::- "The Water" (film), a 2009 short film directed by Kevin Drew
  
  Section::::Arts, entertainment and media.:Literature.
  
  BULLET::::- "Water" (novel), by Bapsi Sidhwa
  
  Section::::Arts, entertainment and media.:Music.
  
  Section::::Arts, entertainment and media.:Music.:Albums.
  
  BULLET::::- "Water" (Gregory Porter album), 2010
  
  BULLET::::- "Water" (The Beautiful Girls album), 2006
  
  BULLET::::- "Water" (Annabelle Chvostek album), 2003
  
  BULLET::::- "Water" (Conor Oberst album), 1993
  
  BULLET::::- "Water" (Saigon Kick album), 1993
  
  BULLET::::- "Water" (Zoogz Rift album), 1987
  
  BULLET::::- Water (EP), a 2008 EP by Salem
   Section::::Commercial performance.
   An iso-osmolar solution can be hypotonic if the solute is able to penetrate the cell membrane. For example, an iso-osmolar urea solution is hypotonic to red blood cells, causing their lysis. This is due to urea entering the cell down its concentration gradient, followed by water. The osmolarity of normal saline, 9 grams NaCl dissolved in water to a total volume of one liter, is a close approximation to the osmolarity of NaCl in blood (about 290 mOsm/L). Thus, normal saline is almost isotonic to blood plasma. Neither sodium nor chloride ions can freely pass through the plasma membrane, unlike urea.
   BULLET::::20. "Le Jeu Du Téléphone" — Natacha Snitkine (1967)
  
  Section::::Season 1 - Episodes 1 to 50.:Episode 23: Water.
  
  First aired on October 4, 2006.
  
  BULLET::::1. "Mommy Give Me A Drink Of Water" — Danny Kaye (1958)
  
  BULLET::::2. "Wade In The Water" — Ramsey Lewis Trio (1966)
  
  BULLET::::3. "Cool Clear Water" — Bob Nolan & The Sons Of The Pioneers (1941)
  
  BULLET::::4. "You Don’t Miss Your Water" — William Bell (1961)
  
  BULLET::::5. "High Water Everywhere Part 1" — Charley Patton (1929)
  
  BULLET::::6. "Water Water" — Effie Smith and The Squires (1956)
   The Vedas in a casket, or the melodious vina ?
  
  The lovely blossom put forth by the stout branch of my tree of enjoyment ?
  
  A cluster of pichaka buds, or sugar-candy sweet on the tongue ?
  
  The fragrance of musk, the beat of all good ?
  
  A breeze laden with the scent of flowers, or the essence of purest gold ?
  
  A bowl of fresh milk, or of sweet smelling rose-water ?
  
  The field of all virtue, or an abode of all duty ?
  
  A cup of thirst-quenching cold water, or a sheltering shade ?
   BULLET::::- "Beginning Again", "Leave All the Days Behind", "Resolution", "So Would Have I", "Time Is Nothing", "The Last Hymn"
  
  Section::::Non-album tracks.:Digital releases.
   Section::::Alimentation.
  
  Helostoma teminkii is an omnivorous microfagic filtering fish, whose nutrition is based on a wide variety of food sources, such as insects, algae, larvae from other species and other microorganisms found on submerged species. The mouth, teeth, gills and especially the intramedibular joint described above make this fish a very well adapted species: it is able to find nutrients in places where other species cannot be such as algal-covered surfaces.
  
  Section::::In the aquarium.
  