(HealthDay)—After systolic blood pressure (BP) reaches 120 to 125 mm Hg, it increases at a relatively rapid rate toward overt hypertension, according to a study published online March 21 in JAMA Cardiology. Teemu J. Niiranen, M.D., from Boston University, and colleagues used data from the Framingham Original Cohort (1,252 participants; 63.1 percent women) to identify