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Medicine

Synovial Fluid Composition

Quick fact

Synovial fluid is a shear-thinning fluid — it becomes thinner and less viscous when subjected to high forces (like during running), then thickens again at rest, providing both easy movement and protective cushioning.

Why this is interesting

Have you ever wondered what makes your joints glide so effortlessly, even under heavy loads? The secret lies in a remarkable fluid that's part oil, part shock absorber, and part nutrient delivery system.