ABSTRACT
Water is an essential component in daily living and in exercise and sport activities. It has several functions in the body, including carrying nutrients in the blood, regulating body temperature, protecting the spinal cord and brain, lubricating, and participating in various biochemical reactions. Because water has several important functions in the body, water balance is very important. The density of various electrolytes like sodium, calcium, magnesium, and chloride determines this balance in the volume of body water, as well as daily body water intake compared to daily body water loss. This concentration of electrolytes or solutes and body water balance determines one’s hydration status. Euhydration refers to when the body has an adequate volume of water to meet physiological demands. Hyperhydration refers to a temporary condition when there is too much water volume, and hypohydration refers to when the water volume is too low.
