The human body has two pumps that pump the blood around the body One is called the heart and everyone knows of this. Now if you have high blood pressure the heart cannot push the blood then the pressure rises and this is a fact. People whom walk have less incidence of high blood pressure and that makes me ask why?
Well the answer lies in the feet as one walks the heel is placed on the ground and the blood is squeezed out of the heel and when it is lifted the blood from the heart replaces the displaced blood and it repeats as each step is taken. Now if the feet strike the ground at half the rate of the heart then equilibrium is preserved and one can sustain this speed over long periods of time. as the heart rate increases so can the speed of the feet.