Massage therapy involves the manipulation of soft tissues in the body, including muscles, connective tissues, tendons, and ligaments, to improve health, well-being, and performance. By using varied pressure techniques, massage therapy directs venous and lymphatic flow around the body and back towards the heart. This ensures no undue pressure is placed on the closed valves in the veins, preventing backflow of blood. Techniques also stretch muscle fibers to maintain their mobility for everyday activities, work, or sports.