Article: Wide awake? Insomnia may or may not be stress-related. (includes related article on how to improve your sleep)

Now I lay me down to sleep ..." begins the children's prayer. Although tonight will find most of us resting comfortably in our beds, some 30 million adults in America will toss and turn for hours, seeking that elusive "good night's sleep."

All of us have experienced temporary insomnia, but for some it's a serious problem. Since the development of sleep disorders centers (usually associated with universities or medical centers), researchers have gained insights into the causes and treatments of insomnia.

What is insomnia? The word insomnia simply means sleeplessness, but insomnia generally refers to a person who has difficulty falling or staying asleep. Since sleep ...

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