Painful joints? They might need lubrication. Life Force Physiotherapy Water improves joint movement! Think of synovial fluid in joints like oil in an engine. Having a sufficient amount of oil and of good quality will help the engine Cartilage Lubrication from the Perspective of Wettability ACS Nano Did you know that water helps to lubricate and cushion your joints, spinal cord and tissues? This is particularly important if you regularly engage in activities that place pressure on your joints.