An analysis of the relationship between several vascular function measures and blood pressure levels finds that certain measures including higher aortic stiffness were associated with a higher risk of new hypertension; however, initial blood pressure was not independently associated with risk of progressive aortic stiffening, suggesting that vascular stiffness may be a precursor rather than the result of hypertension, according to a study in the September 5 issue of JAMA. “Vascular stiffness increases with advancing age and is a major risk factor for age-related morbidity and mortality. A compliant aorta provides an important buffer for each ventricular contraction that maintains pulse pressure at low levels.