Dehydration may be mild, moderate, or severe. Severe dehydration can lead to shock and death. Dehydration is sometimes severe. Serious cases usually occur in infants, sick people, athletes, and the elderly. Unless severe dehydration is treated very quickly, death can result.
Early intervention is the best prevention.
The body needs a constant source of fluids. Eight glasses of fluid a day are recommended to keep the body well hydrated. When a person is ill, especially with diarrhea or vomiting , clear fluids will help keep the body hydrated. Sports safety includes drinking plenty of water during and after exercise to prevent dehydration. The diagnosis is usually based on the symptoms and a physical exam.