can human drink sea water?
444594
Potability\n\nEven on a ship or island in the middle of the ocean, there can be a "shortage of water" meaning, of course, a shortage of fresh water. This is described most famously by a line from Samuel Taylor Coleridge's The Rime of the Ancient Mariner:\n\n    "Water, water, every where\n    Nor any drop to drink."\n\nSeawater can be turned into drinkable (potable) water by one of a number of desalination processes. Otherwise, it should not be drunk because of its high dissolved mineral content. In the long run, more water must be expended to eliminate these minerals (through excretion in urine) than is gained from drinking the seawater itself.
695700
silly question!! next time try asking .......... do humans drink water?!! simple answer......... hell yes!!!
1122428
Because the body cannot process salt water.
133642
Sea salt comes in fine or larger crystals. In nature it includes not only sodium chloride, but also other vital trace minerals.\ncheck out this article it should help: http://en.wikipedia.org/wiki/Sea_salt\nAlso: http://en.wikipedia.org/wiki/Table_salt
609639
seafood is salty... salt dehydrates you, therefore you get thirsty
80015
Yes; they need to, in order to maintain their internal ion/water balance (osmoregulation). Marine fish have to drink constantly to avoid dehydration; they have special cells in their gills to excrete the excess chloride.\nFreshwater fish face the opposite problem: their bodies tend to let water in and their internal ionic concentrations tend to become diluted. Therefore they drink water, retain the ions and afterwards excrete large volumes of very diluted urine. And they also have special cells in their gills for osmoregulation.
700454
One way to do that for relatively small volumes of water is to force the sea water through a special membrane filter under high pressure. The filter membrane must be constructed so that its holes are large enough to just pass a water molecule, but not large enough to pass metal\nmolecules, salt molecules, algae, etc. The result would be fresh clean water with a lot of brine solution left in the pressurized tank that needs to be dumped.\n\nAnother process which is more poractical for large volumes of fresh water production is electrolisis. In that process, electrical current is passed through the water to break it down into its basic elements such as hydrogen and oxygen (and all the other junk that is left over).\n\nOnce the hydrogen and oxygen are collected and recombined, the result is pure fresh water. Again, the vat or tank holding the original sea water now has a heavy brine solution which must be disposed of somehow. Most any use of sea water to produce fresh water will generate a lot of salty brine by-product that could poison sweet earth in the vicinity if it is merely dumped.
722560
human skin when compared to saline ocean or sea water ,the skin itself is more saline due to the sweat we produce
1002034
Yep it's water but not the fountain of youth. Drinking water and lots of it rejuvenates the skin and keeps it healthy and nourished, our bodies and the earth is made mostly of water so go figure.  We can't survive without water you would die, literally.
56295
Yes. Fish that live in saltwater lose moisture from their bodies through osmosis. These fish need to drink lots of water, or they'll become dehydrated. The extra salt is then simply excreted.
1071421
Warm salt water rinses.
514636
star drinking water it will help
158608
Yes, water intoxication is quite deadly. its a condition called hyponatremia.If you consume large amounts of water , blood plasma (the liquid part of blood) increases thereby diluting the salt content of the blood.  At the same time, your body also loses salt by sweating.  Consequently, the amount of electrolytes available to your body tissues decreases over time to a point where that loss interferes with brain, heart, and muscle function!  You have to replace these electrolytes!  They're essential to the normal electro-chemical operation of your nervous system.
578231
Yes it is safe to drink.  It is nasty tasting but not bad for you.  It has just been cleaned of all minerals and spirits that are in normal tap water.  Hospitals use it in humidifiers and respiratory machines.  So if it was bad the hospital wouldnt use the stuff.
626093
76% of human body is water. this figure is not same to every body do the climate that they live. The habits of drinking water also may show differ answer like the chiness people in general like to drink water a lot.\n\nFor example: people in Sahara may consist of less water compare to people in Alaska.\n\nClimate, alitude, temperature and others may affects the readings.
1128380
The minerals and salts in the water dehydrates the body the more water you drink.
808602
Even though our blood chemistry is rich in sodium like sea water, we drink fresh water not because of taste but rather biology.  Our bodies need a very fine balance of water content and sodium content.  If the sodium concentration is too low, our cellular functions cease and we die.  If the sodium concentration is too high, our cellular functions cease and we die.  \n\nLand animals lose water through sweat, urine, stool, as well as just by breathing.  We need to replace the water that we lose or else the sodium balance will be tipped and we will die of dehydration.\n\nHuman beings are unable to drink sea water because our kidneys are not efficient enough in concentrating the urine to eliminate the excess salt and in effect will cause the sodium concentration and ultimate kill us.  There are animals that have special adaptations that allow them to survive on salt water, such as more efficient kidneys, glands that secrete the excess salt from their bodies, and better methods to conserve body water... these particular creatures would likely suffer problems if they drank fresh water and die of "water poisoning" (i.e. loss of salt.)\n\nIn this case, biology has dictated taste.  You can guess what happened to everyone else who didn't develop the taste for fresh water...