Harvard Heart Letter
Blood pressure: Can it be too low?
New findings focus on diastolic blood pressureóthe second number in your blood pressure reading. Of the two numbers that make up your blood pressure reading, the first one (systolic blood pressure) typically gets more attention. Thatís because as people age, their arteries lose their elasticity, and the inner walls are more likely to accumulate cholesterol-laden plaque. These factors tend to raise systolic blood pressure, a measure of the pressure inside the