Healthy joints need more than exercise, they need hydration! Drinking enough water helps cushion your joints, eases movement, and prevents stiffness. Keep moving comfortably by staying properly Top 10 Foods to Lubricate the Joints Question: Importance of Water in the Human Body The image shows that 60%.. Joint movement depends on synovial fluid, a slippery liquid that reduces friction and nourishes cartilage. This fluid is constantly renewed through joint movement and adequate water availability. When hydration is reduced, synovial