(HealthDay News) -- If you don't drink enough water -- especially on a hot day -- you could become dehydrated. That's an obvious cause.
But a number of other things can cause dehydration, a potentially dangerous lack of bodily fluids.
The U.S. National Library of Medicine offers this list:
- Having diarrhea or vomiting.
- Urinating frequently, perhaps from uncontrolled diabetes or using diuretic medication.
- Sweating excessively.
- Having a fever.
- Not eating due to nausea or lack of appetite.
- Having a sore throat or painful sores in the mouth.
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