Chapter 1: How Your Body Controls Blood Pressure
To understand why high blood pressure is a serious health problem, you first need to become familiar with the concept of blood pressure. This chapter reviews how and why the body maintains blood pressure and what can go wrong in the many systems involved.
Your heart and blood vessels work together to deliver oxygen and nutrients throughout the body and to remove waste products, such as the carbon dioxide you exhale with each breath. Blood is the medium through which these substances are transported. Blood pressure is the result of two opposing forces in the body: the force created by...