Article: AGE NOT CAUSE OF INSOMNIA, RESEARCH FINDS.(News)

Most theories about why millions of elderly suffer insomnia are wrong, according to a new study that says the brain clock regulating sleep ticks as accurately for the old as for the young. Experts say the groundbreaking study could help researchers find new treatments for sleeplessness.

Among its major findings, the study revealed that the brain clock regulating sleep is on a 24-hour schedule, not a 25-hour cycle that researchers long believed.

``We are going to have to rethink all of the explanations we have been giving for insomnia,'' said Dr. Charles Czeisler of Harvard Medical School and Brigham and Women's Hospital in Boston. ``All of the textbooks ...

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