How long can humans survive without sleep?
Why water is important?
Water is important to humans because without it we'll die. The human body is around 70% water. Humans are able to survive without water for a little while, but not as long as we can survive without food. We can survive without food for a week to a month and we can survive without water for three days to a week. Can you see the 'obvious' difference?
How long can you survive without sleep?
Like breathing, sleep is a fundamental human requirement. It has even been said that one could survive for three times as long without food as one could without sleep. One of the better known experiments on this subject, found that depriving rats entirely of sleep resulted in their death, or near-dying state, within 11-32 days.