High blood pressure What is high blood pressure?īlood pressure is the pressure of your blood against the inner walls of your arteries as it is pumped around the body by your heart.Īs your heart pumps, the flow of blood in your arteries and your blood pressure rises and falls in a regular wave pattern.īlood pressure peaks when your heart pumps (called systole) and falls when your heart relaxes (called diastole).

Fluoride and protecting your teeth from tooth decay.