Nature Reviews Cardiology: Prehypertension affects 25–50% of adults worldwide and is associated with incident hypertension and cardiovascular disease. In this Review, Egan and Stevens-Fabry provide guidance to health-care professionals by summarizing the available data on the prevalence of prehypertension, the related risk of cardiovascular morbidity and mortality, and the effect of lifestyle and medical interventions on reducing incident disease. http://bit.ly/1FXKTO8 (£)