Dehydration (hypoidratation) is defined as an extreme loss of liquid of the body. It is literally the water removal of an object, however, in physiological terms, that a deficiency of liquid in the organism implies.

Three main types of dehydration exist: hipotônica or hiponatremia (mainly loss of electrolytes, sodium in particular), hipertônica or hipernatremia (mainly the loss of water), and isotônicos or isonatremic (loss equal of water and electrolytes). In human beings, the type more comumente seen of dehydration, of far, is isotonice (isonatraemic) dehydration that corresponds effectively with hypovolemia, but the distinction of isotonice of the hypotonice or hypertonice dehydration can be important in the treatment of people who are dehydrated. Physiological dehydration, although the name, does not mean only loss of water, as water and solutos (mainly sodium) are normally lost in approximately equal amounts the form as they exist in the plasma sanguineous. In the hypotonice dehydration, the water changes to intravascular for the extravascular one, exaggerating depletion of volume to intravascular for one definitive amount of loss of total corporal water. The neurological complications can occur in hypertonice states hipo and. The first one can cause convulsions, while second it can take edema cerebral osmotice on the fast rehydrataion.

The symptoms can include migraines similar what it is tried during an undertow, muscular cramps (cramps, especially in the legs), a sudden visual snow episode, reduction of the arterial pressure (hypotenstion), and giddiness or collapses when in foot, due to ortostatice hyipotention. treated dehydration generally does not result in delirium unconsciousness, swell of the language and, in extreme cases, death.

The symptoms of the dehydration generally become visible after 2% of a normal volume of water were lost. Initially, an experience headquarters and discomfort, possibly with appetite loss and dry skin. This can be followed by constipation. The athletes can suffer a loss of performance from up to 30% and redness experience, resistance low, the taxes of sped up heart, the body temperatures high, and fast beginning of fatigue.