It is possible to drink too much water

Dr. Ben Kim writes article explaining why a person can die from force drinking too much water.

Unfortunately, it was reported that someone did die in a water-drinking contest called “”Hold Your Wee For A Wii” in which she drank 2 gallon worth of water.

This is due to consuming too much water in a too short amount of time and not allowing your bladder to empty. The circulatory system gets diluted with water, reducing electrolytes level.   And the cells in the brain swell with water causing cranial pressure.