Frontiers Osteoarthritis: multitissue pathology, molecular mechanisms, clinical management, and emerging precision and regenerative therapies Other than pelvic health and sex, we love talking about water! Yes, good ol' H 2 O! Water comprises about 60% of a human's body weight, so it goes without saying that water Synovial fluid is a thick liquid that acts as a lubricant for the body's major joints. It is found in small quantities in the spaces between the joints, where the fluid is Osteoarthritis Nature Reviews Disease Primers Synovial fluid as a complex molecular pool contributing to knee osteoarthritis Nature Reviews Rheumatology Dehydration and Joint Pain: How Your Hydration is Affecting Joint Health Orthopedic Associates