Dehydration problem can not be considered unimportant because it results could be fatal. According to the experts, exercising in the heat and humidity condition can increase the chances of dehydration. However, whether realize or not, drink water often becomes the last thing that is done when exercising.
Actually, sweat that comes out from the body when exercising automatically requires replacement, in order to keep the body fit. Also to be known that exercising intensely in the first hour can secrete sweat in an amount that equivalent to eight glasses of water, especially when the environment was hot and humid. If this thing allowed, of course we could experience dehydration.