There is ample evidence that a full night's sleep is essential to maintain a healthy mind and body.There is,however,a school of thought that maintains that sleep is a luxury sought by the constitutionally lazy individual.Many people are convinced that neglect of proper sleep - sleep of the right quality and at the right time - lies at the root of many of our personal and social problems.In the 27 October 2005 issue of Nature there is a discussion of sleep,its nature,its demands,the penalty for its neglect and how we should think about it.
展开▼
