Dehydration happens when your body, which is approximately 75 percent water, uses or loses more fluid than it takes in. It is normal to lose bodily fluid every day by breathing and urinating. However, your body does not function properly without enough fluid.
Dehydration can be caused by illness, fever, diarrhea, vomiting and excessive sweating. Losing too much water and not drinking or eating enough can also lead to dehydration. Drinking fluids and eating foods containing water help replace lost liquid. Although anyone can become dehydrated, it is especially dangerous for younger children and older adults.
Seek immediate medical attention if you have any of the following symptoms:
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