09/07/2026
💧 DEHYDRATION: YOUR BODY MAY BE WARNING YOU
Dehydration happens when your body loses more fluid than it takes in. Even mild dehydration can affect your energy and concentration. Severe dehydration can interfere with circulation, kidney function and other important body processes.
COMMON CAUSES INCLUDE:
• Not drinking enough fluids
• Hot weather or heavy sweating
• Fever
• Vomiting or diarrhea
• Frequent urination
• Intense exercise
• Certain medicines, including some diuretics
EARLY SIGNS:
• Feeling thirsty
• Dry mouth or lips
• Dark yellow urine
• Urinating less frequently
• Headache
• Tiredness or weakness
• Dizziness, especially when standing
Babies and young children may have fewer wet diapers, no tears when crying, a dry mouth, sunken-looking eyes, irritability or unusual sleepiness.
WHAT SHOULD YOU DO?
• Begin sipping water or another appropriate fluid early.
• Take small, frequent sips if nausea makes drinking difficult.
• Vomiting or diarrhea may require an oral rehydration solution—ORS—to replace both water and electrolytes.
• Rest in a cool place if heat or heavy activity caused the fluid loss.
• Treat the underlying cause, such as fever, vomiting or diarrhea.
• Do not take salt tablets to treat dehydration.
People with heart failure, kidney disease or prescribed fluid restrictions should follow their healthcare provider’s individualized advice before increasing fluids.
🚨 GET URGENT MEDICAL HELP FOR:
• Confusion or unusual drowsiness
• Fainting
• Severe weakness
• Very little or no urine
• Rapid breathing or heartbeat
• Inability to drink or keep fluids down
• Symptoms that continue to worsen
Do not force fluids into someone who is confused, having a seizure or unconscious because they may choke. Seek emergency help.
Your urine color can offer a clue: pale yellow generally suggests better hydration, while dark yellow urine may mean you need more fluid. However, foods, vitamins, medicines and medical conditions can also change urine color.
Pay attention to the early warning signs—replacing lost fluids early may prevent dehydration from becoming severe.
Follow Health Away for simple and practical health information.
Educational information only—not a diagnosis.