High blood pressure decreases the life expectancy of men by 5.1 years and women by 4.9 years.
Franco, Oscar, Anna Peeters, Luc Bonneux, and Chris de Laet. Blood Pressure in Adulthood and Life Expectancy with Cardiovascular Disease in Men and Women: Life course analysis. Hypertension. 2005; 46(2): 280-6. http://hyper.ahajournals.org/cgi/content/abstract/01.HYP.0000173433.67426.9bv1