Dehydration is a condition that occurs when the body loses more fluids (mostly water) that it takes in. Dehydration causes more water to leave our bodies than we take in through water consumption. It is normal for us as humans to excrete a certain amount of water each day. Water escapes from the body as water vapor every day as we breathe (exhale) and as we excrete fluids through sweat, urine, and stool. Other than water, small amounts of salts are also excreted. However, when we lose too much water, our bodies can become dehydrated. This can lead to certain health problems and in severe cases, can lead to death.

Causes of dehydration

· Significant injuries to skin, such as burns or mouth sores, or severe skin diseases or infections (water is lost through the damaged skin)

· Diseases such as diabetes

· Fever, heat exposure, and too much exercise

· Vomiting, diarrhea, and increased urination due to infection

· The inability to seek appropriate water and food (as in the case of a disabled person)

· An impaired ability to drink (for instance, someone in a coma or on a respirator)

Symptoms of dehydration. The signs and symptoms of dehydration range from minor to severe and include:

· Increased thirst

· Confusion

· Dizziness

· Fainting