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Length of sleep linked to cardiovascular disease

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Sleeping for longer or less than seven hours per night is linked to an increased risk of cardiovascular disease, according to US researchers.

They studied 30,397 adults, of which 2,146 had a cardiovascular condition, comparing sleep duration with risk of myocardial infarction, angina, and stroke.

They found those who regularly slept for five hours or less were 2.2 times as likely to have suffered CVD in the past as those who slept for seven hours.

In addition, those sleeping for nine hours or more had a 1.6 times greater risk of developing CVD.

The authors said: “These results suggest that sleep duration may be an important marker of cardiovascular disease.”

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Readers' comments (1)

  • I am surprised that this story does not give any citation to the original study report. How else can we follow the findings?

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