Which of the following best describes the function of compression socks?

Compression socks are designed to provide graduated pressure to the legs and feet, which effectively supports circulatory health. They function by applying pressure to the surface of the legs to promote blood flow back to the heart, which can help reduce the risk of venous disorders such as deep vein thrombosis, swelling, and varicose veins. The pressure they exert works by improving venous return and preventing blood from pooling in the lower extremities, thereby enhancing overall circulation.

The other options do not accurately describe the primary role of compression socks. While they may provide some warmth due to the material, that is not their intended medical function. They do not cool extremities or reduce sweat production, as their main purpose is focused on enhancing circulation rather than affecting temperature or moisture levels. Therefore, the function of compression socks is best captured by their role in supporting circulatory health.