Sleep
Sleep is something we tend to take for granted until we find we can't, and then we worry. Why do we sleep at all, and how much do we really need? Is it possible to have too much and can we train ourselves to need less? Is sleep before midnight more valuable than after? Why do we sometimes wake feeling tired? Are catnaps useful? Do we all dream and what are dreams for? Are there certain cures for insomnia? Some of the questions you might like to put to Dr Ian Oswald of the Sleep Research Laboratory at Edinburgh University.
In the Chair Sue MacGregor Produced by the Woman's Hour Unit
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