And what that means is the volume of blood that travels inside our arterios interacts with much more of the surface area of the wall. And what that basically means is we have a much higher resistance and that decreases our pressure and it also decreases the velocity with which the blood actually moves along our arterios. Now, the question is why is that beneficial? So the velocity of the blood flow decreases. But why is this actually beneficial? Well, the answer lies in our capillaries.