Blood doesn circulate in an even stream around the body, but travels in a constant series of spurts. Therefore the pressure peaks in the blood vessels just after a heart beat and then ebbs until the next one Cheap Cigarettes Outlet. This is a continuous process.
The two blood pressure figures represent the pressures when the forces are at their peak and at their lowest ebb. The stronger the arteries are, the more they resist the force of the blood and the lower the blood pressure.
As a person gets older Newport Cigarettes Coupons, and the elasticity of their arteries weakens, the figures tend to rise. However the lower figure should still be under 90 until that person at least reaches their sixties.