How Much Water Should I Drink?
Simple Answer
What It Means
When to Contact a Doctor
The source material does not provide a water intake rule or target amount.
Sources
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Why it matters
Water keeps your body temperature steady, cushions your joints, and helps your kidneys clear waste. Even mild dehydration can cause tiredness, headaches, and trouble focusing.
Quick tips
- A common target is about 6–8 cups (1.5–2 liters) a day, but needs vary by size, activity, and weather.
- Drink more when it's hot or when you exercise, and sip throughout the day rather than all at once.
- Check your urine — pale yellow usually means you're well hydrated.
- Foods like fruit, soup, and vegetables also count toward your daily fluids.
Have your own question?
This service provides general medical information and education. It does not diagnose medical conditions or replace care from a physician or other qualified healthcare professional. If you may be experiencing a medical emergency, call 911.