6 Habits That May Damage Your Veins

The function of a vein is to return blood to the heart from a peripheral part of the body. The blood in the veins is pushed forwards by the force of the pumped blood in the arteries.Veins have one-way valves that are designed to close against the backflow of blood. Since veins are thin-walled, this mechanism is essential in order to prevent the pooling of blood in the lower part of every vein.When these valves are damaged by infection, or disease, or as the result of too much and prolonged pressure on them, blood leaks back through them. This causes blood to collect in the part of the vein that is below the valve.