DEHYDRATION - REHYDRATION

These are the two closely related concepts, but each on the opposite side of the balance of water in the body.

Water is essential to the human body substances. Is contained in each tissue in each cell.
Without food intake can hold out for several weeks, without water intake, however, a few days appear disorders ending the activities of the collapse and death.

Infant's body contains about 90% water content in the course of life, declining to 55-60%.
In the prolonged lack of fluid intake and unheard, there can be damage to individual cells and, consequently, the various institutions.

Short-term lack of fluid, whether because of diarrhea, vomiting, increased sweating, overheating or increased alcohol consumption
is accompanied by the following phenomena:

• Decreasing the overall performance of the body by up to 25%
  
• Increasing fatigue to the state energy reserves are exhausted
  
• Lack appears (thanks to a lack of sodium in the blood stream)
  
• Does the headache with symptoms similar hangover (due to lack of chlor ions)
  
• Reflected the weakness, tendency to seizures, irregular heart function (because of a lack of potassium)
  
• Comes anxiety and depression, tremors, heart rhythm disorders, disturbance of consciousness as epiphenomena dehydration in response to the lack of magnesium.
  

Rapid and efficient means of re-hydration are special funds also known as ORS (Oral Solution rehydrated). High-quality mixtures for re-hydration solutions / beverage belongs to a group of foods for special medical purposes. They have declared the composition based on specific scientific requirements of international institutions such as ESPGHAN (The pediatric society), WHO (World Health Organization) and others.

Current re-hydration drinks, supplying ion and carbohydrates in various proportions and seasonings, it falls under the category of food for athletes and those at increased physical exercise.