Healthy HeartSpecial ReportsSubscriber Only Beating Hypertension-the Silent Killer April 9, 2019 0 Facebook Twitter Google+ Pinterest WhatsApp One in three American adults has hypertension (high blood pressure). And, because hypertension causes few obvious symptoms, many people with high blood pressure dont even know it. To continue reading this article you must be a paid subscriber Subscribe Subscribe to Tufts Health & Nutrition Get the next year of Tufts Health & Nutrition for as little as $18. And access all of our back issues and online content free of charge. Subscribe today and save 36% off the regular rate! Already Subscribed? Click Here to Sign In | Forgot your password?