Standing for long periods of time on hard floor surfaces is very uncomfortable and causes physical fatigue. Leg muscles become static and constricted as they work overtime to keep that person in an upright position, and blood flow is greatly reduced causing pain and discomfort. In this situation the employees' heart is forced to work harder to pump blood through these constricted areas and his or her body begins to run out of energy. The long-term health risks associated with fatigue include spinal compression, damage to other joints and long-term circulatory problems including thrombosis, strokes and heart attacks. How do mats reduce fatigue? If a person is allowed to stand on an anti-fatigue mat, their muscles will subtly contract and expand as they adjust to the flexibility of the mat. This muscle movement increases blood-flow and increases the amount of oxygen reaching the heart, thus greatly reducing fatigue. Rubber mats are ideal for this purpose. Rubber mats can also improve blood circulation by insulating the feet from a cold floor, which is an added benefit. Anti-fatigue mats can improve productivity. By reducing an employee's energy consumption and easing fatigue, the individual is able to carry out tasks for much longer periods and with greater efficiency.