A television documentary recently reported an unusual case of insomnia in England. Loughborough University advertised for people who thought they did not need to sleep to come forward to join in a sleep research study. So people who were short sleepers volunteered to be tested under laboratory conditions. At night they were allowed to lie in bed to rest and their brain waves were monitored continuously. There was a man who claimed that after an accident causing head injury a few years earlier he did not sleep at all. He also claimed that he was functioning normally and did not feel worried when he was lying awake. Brain wave recordings showed that he slept only four minutes during the three day study.
The study findings suggest that perhaps the brain is programmed to sleep periodically. The man who did not have the need to sleep after the head injury may have had his brain reprogrammed in such a way that sleep was no longer required. Maybe in hundreds or thousands of years from now we will be able to reprogram the brain so that we will have the choice of not having to sleep at all. There is a Chinese saying, ‘Life is not as long as it seems, as half of it is spent sleeping’.
It is possible that there are other biological functions, yet to be discovered, which only happen in sleep. We have only just started to study sleep as a science, and sleep laboratories have been around only in the last 50 years. We are certain that we are only scratching the surface of the science of sleep and that there is much more to discover, for there are still many unanswered questions and why we need to sleep is one of them.
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