jointgenesis posted the thread Why Morning Stiffness Starts Inside the Joint.
That familiar feeling of stiff knees, tight fingers, or achy hips after waking up isn't always simply a sign that your cartilage has “worn out.” The joint's lubrication system may also play an important role.
Inside movable joints is synovial fluid, a naturally slippery substance that helps cartilage surfaces glide smoothly. When this fluid becomes less viscous, movement can feel less comfortable—particularly after several hours of inactivity.
The Hyaluronan Connection
One of the most…