Although there is to always take water, the necessity is still more imperative before high temperatures and when physical activity is realized intense, and the most vulnerable groups before a possible dehydration are the pregnant and nursing children, people majors, women, and the sportsmen.
In normal environmental conditions, a person can lose near 2,300 ml of liquids through the urine (1,500 ml), sweat (150 ml), the skin and the lungs (350 ml each). However, when the climate is warmer, the loss through the sweating can multiply until by ten and to reach the 1,400 ml, that's why is necessary to drink water and liquids still more.
