Blood Pressure Decreaser PDF eBook download by Thomas Andrews. Do you know what your blood pressure reading is and have you had your blood pressure checked lately? The force with which the blood exerts on the walls of the arteries (blood vessels carrying blood away from the heart) is known as the blood pressure. When the heart contracts and pushes more blood into the arteries, this force is a little higher and is known as the systolic blood pressure. The drop in pressure between beats is known as diastolic pressure. Learn how to lower your blood pressure now!