Newsletter Article

Circadian Rhythm of Vascular Function in Midlife Adults

August 2019

Objective: Adverse cardiovascular events occur more frequently in the morning than at other times of the day. Vascular endothelial function (VEF)—a robust cardiovascular risk marker—is impaired during this morning period. We recently discovered that this morning impairment in VEF is not caused by either overnight sleep or the inactivity that accompanies sleep.

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