Water has an important role for health, fitness, concentration, and maintain the quality of life. Water also played a role in preventing various diseases, and optimize your physical abilities, because most of the human body contains liquid or water. Decrease 4 to 6 percent of the water in the body, will create headaches, dizziness and weak body.
Meanwhile, when it reached 12 percent of fluids that lost, then someone will be difficult to chew and need medical assistance. And more severe, if a person decreased water up to 15 to 25 percent, it would be fatal, because someone could have fainted. While the characteristics of a dehydrated person, for light dehydration such as, thirst, dry lips, dry throat, dry skin.
