If dehydration is not treated, it can cause death. If it is treated in time, recovery is usually complete.

Know the symptoms of dehydration. Try to drink extra fluids if you know your body is losing them rapidly. Do not drink alcohol or beverages with caffeine. If you are traveling in a country that may not have safe water for drinking, carry with you a quart (liter) of boiled water with you.

Make sure you drink plenty of water. When you are physically active, especially in hot weather, it is best to drink water some time before starting the exercise or sport. Then drink small amounts of water often during the exercise. Continue to drink liquids after exercise.

If you have diarrhea or vomiting or you are not drinking much, force yourself to drink more liquids before you become dehydrated.

If you are with someone you think is becoming dehydrated, give more liquids than usual. Remember that a dehydrated person will have less of an appetite. Encourage him or her to eat and drink small amounts of food and liquids 5 to 7 times a day. Watch for signs of more severe dehydration and get medical help as soon as possible.