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  1. Dehydration - Symptoms & causes - Mayo Clinic

    May 2, 2025 · Symptoms Thirst isn't always a good way to tell if the body needs water. Many people, mainly older adults, don't feel thirsty until they're dehydrated. That's why it's important to increase …

  2. Dehydration - Signs, Symptoms, Causes, and Prevention - WebMD

    Aug 5, 2025 · What Is Dehydration? Dehydration happens when your body doesn't have as much fluid as it needs. That means your body can't function properly. Common causes include sweating, …

  3. What Are the 14 Signs of Dehydration? - MedicineNet

    Dehydration is a common issue that affects many people. Learn the signs of dehydration, what causes it, how doctors diagnose it, and what you can do to treat it.

  4. How to Tell If You’re Dehydrated: Signs and Symptoms

    Jul 31, 2023 · This article covers 8 signs and symptoms of dehydration in adults, as well as explains the most common signs of dehydration in infants and kids.

  5. Dehydration: Symptoms & Causes - Cleveland Clinic

    It occurs when you lose more fluids than you take in. Dehydration may happen on a particularly hot day if you sweat a lot, or if you’re sick with fever, diarrhea or vomiting. It can also occur if don’t drink …

  6. Symptoms of dehydration: What they are and what to do if you ...

    Jan 2, 2024 · Read about dehydration symptoms, causes, what to do if you experience symptoms of dehydration, when to see a doctor, and prevention.

  7. 10 symptoms of dehydration - Kaiser Permanente

    Dec 2, 2025 · Recognize dehydration symptoms like dry mouth, confusion, dizziness, or fainting. Learn more about prevention tips and when to seek care with Kaiser Permanente.

  8. How to Know You're Dehydrated: 16 Symptoms & Signs, Treatment

    Dehydration is a symptom that occurs when the body loses more fluids than it takes in, resulting in the body not having enough water to function normally. Dehydration can range from mild to severe and …

  9. Doctors Reveal 10 Subtle Signs of Dehydration You Should Know

    Aug 22, 2025 · Indeed, when you fail to drink enough to replenish the fluids lost through urination, sweating, and even breathing, you begin to enter a state of dehydration. Being dehydrated doesn’t …

  10. Dehydration: Symptoms, Diagnosis, Treatment, and More - Health

    Sep 28, 2025 · Dehydration occurs when your body loses more fluids than it takes in. It is a common problem that can affect someone of any age, but dehydration is particularly prevalent among older …