Our bodies can live up to a month without food, but less than 7 days without water. But they can’t survive a week without water.
If you’re drinking enough water, you should be passing between one and two litres of urine a day. When you feel thirsty, it’s a sign that you’re already getting dehydrated.
Dehydration can leave you feeling tired, make it difficult to concentrate and impact your physical performance.
Mild dehydration is easily remedied by drinking some water. But losing a significant amount of water (10% of your body weight) can be life-threatening, especially for the elderly and small children.
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