Overhydration, also called water excess or water intoxication, is a condition in which the body contains too much water.
Overhydration occurs when the body takes in more water than it excretes and its normal sodium level is diluted.
Infants seem to be at greater risk for developing overhydration.
Overhydration, which has been cited as a hazard of infant swimming lessons, occurs whenever a baby drinks too much water, excretes too little fluid, or consumes and retains too much water.
Overhydration is the most common electrolyte imbalance in hospitals, occurring in about 2 percent of all people.