A study presented at the American Heart Association Scientific Sessions suggested that extreme fluctuations in systolic blood pressure (SBP) between doctor visits for a prolonged duration could be deadly. In this study, the investigators assessed SBP records of 10,903 patients who had ≥ 7 SBP measurements between 2007-2011 for visit-to-visit SBP variability (VVV). After the 7^th measurement, follow up was done for at least 5 years for all-cause mortality. The results demonstrated that for every 10% increase in the coefficient of variation (CoV), ie, VVV normalized to the mean SBP, the risk of all-cause mortality as a continuous variable increased by 18%.