Magazine article Clinical Psychiatry News

Too Much, Too Little Sleep Doubles Risk of Death

Magazine article Clinical Psychiatry News

Too Much, Too Little Sleep Doubles Risk of Death

Article excerpt

COLORADO SPRINGS -- Change in sleep duration during midlife is associated in a U-shaped fashion with risk for death more than a decade later, Dr. Francesco Cappuccio reported at a conference of the American Heart Association.

The major driver of increased mortality among individuals at the low end of the sleep duration continuum is an excess of cardiovascular deaths, while in long sleepers the increase in mortality is due to non-cardiovascular causes, according to the results of the Whitehall II study, said Dr. Cappuccio of Warwick Medical School, Coventry, England.

Whitehall II is a prospective cohort study of 10,308 white-collar British civil servants who were 35-55 years old when enrolled in the study in 1985-1988. The Whitehall II analysis of the impact of changes in sleep duration included data on baseline sleep patterns in 7,729 participants and changes in those patterns over the next 5 years. Participants then were followed for mortality through 2004.

Cardiovascular mortality was 2. …

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