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Asked by bethanyhake to Dalya, Derek, Sarah, Tim, Tom on 21 Jun 2011.
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Tim Millar answered on 17 Jun 2011:
Water. You can live off the fat reserves in your body for a while followed by the protein in the muscles. Because you have to make about half a litre of urine a day, you would dehydrate very rapidly. You only have to loose around 10% of you blood volume to make your heart work too hard and other organs in the body to start to shut down.
This is a particular problem for kids with diarrhoea especially in the developing world. The treatment is realy simple too, the use of salt solutions (a bit like sports drinks) is all it takes to keep them going.
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Derek McKay-Bukowski answered on 17 Jun 2011:
You can survive only a few days without water before dying. You can last for a week or so without food. In that sense, water is probably a more immediate concern in the short term.
However, you certainly need both.
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Tom Crick answered on 18 Jun 2011:
You can certainly live longer without food than water…but water has no nutritional value so you will eventually die.
So the answer is water…but ultimately both.
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Sarah Thomas answered on 21 Jun 2011:
Water, our bodies are 60% made of water and even if we don’t drink water for one day we already start to feel the effects of dehydration!
Comments
aamnaraza commented on :
food.
bethanyhake commented on :
No it is water, Dalya and Tim quite clearly just explained it to you in great detail.