Poor or impeded circulation will hamper the delivery of oxygenated blood to the body’s organs and tissues. Restricted or interrupted flow can be caused by a blood clot and by plaque or fatty deposits which cause the arteries to thicken, triggering an increase in blood pressure in order to pump enough blood to the heart. Poor circulation can also be a consequence of varicose veins which can form when the walls of the veins in the legs lose their elasticity and springiness. Smoking takes it toll on circulation. Hypertension can lead to stroke, heart failure, kidney damage and angina.