The most authoritative answer in 2024
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Emma Johnson——Studied at Yale University, Lives in New Haven, CT
As an expert in the field of survival and environmental medicine, I can provide you with an informed answer regarding the duration a person can survive without water.
The human body is composed of approximately 60% water, which plays a crucial role in various bodily functions, including digestion, circulation, temperature regulation, and waste elimination. The length of time a person can survive without water depends on several factors, including temperature, physical activity, and individual health.
In general, a person can survive for about three days without water, although this can vary. In hot conditions or with increased physical exertion, the body loses water more rapidly, and survival time can be significantly reduced. For instance, in extreme heat, a person might only survive a few hours to a day without water. On the other hand, in cooler temperatures and with minimal activity, a person might be able to last longer, potentially up to a week or more.
It's important to note that the effects of dehydration can be severe and potentially life-threatening. Symptoms of dehydration include thirst, dry mouth, fatigue, and dizziness, progressing to more serious conditions like heat exhaustion, heatstroke, and kidney failure if not addressed.
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Julian Wilson——Works at the United Nations High Commissioner for Refugees (UNHCR), Lives in Geneva, Switzerland.
How long a person can survive without water. A human can go for more than three weeks without food (Mahatma Gandhi survived 21 days of complete starvation), but water is a different story. At least 60 per cent of the adult body is made of it, and every living cell in the body needs it to keep functioning.read more >>+119962016-2-14
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