A significant loss of body fluid that impairs normal body functions.
Dehydration occurs when the body uses or loses more fluid than it takes in. Then the body doesn't have enough water and other fluids to do its usual work.
To prevent dehydration, drink plenty of fluids and eat foods that hold water, such as fruits and vegetables. Don't drink fluids that have caffeine or a lot of sugar as they can be dehydrating.
Seek medical care immediately for:
Make an appointment to see a healthcare professional if: