Every part of the body needs water, including cells, skin and vital organs. Water must be continually replaced as it is lost through sweating, breathing. digestion and urination. Not replacing this necessary component of the body has serious consequences.
As the video explains, the brain is largely composed of water. When dehydration occurs, it shrinks in size and causes cognitive impairment. This impairment can be severe enough to cause problems with everyday activities. A 2015 study by Loughborough University found that drivers