Skipping sleep may signal problems for coronary arteries

One extra hour of sleep per night appears to decrease the risk of coronary artery calcification, an early step down the path to cardiovascular disease, a research team based at the University of Chicago Medical Centre reports in the 24/31 December issue of JAMA. The benefit of one hour of additional sleep was comparable to the gains from lowering systolic blood pressure by 17 mm Hg...

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