TED-Ed: Why do your knuckles pop? - Eleanor Nelsen

The video explores the phenomenon of joint popping, often heard when bending joints. It explains that synovial joints, filled with synovial fluid, are responsible for the popping sound due to gas bubbles forming and collapsing. The video debunks the myth that joint popping causes arthritis, citing Dr. Donald Unger's experiment. It also highlights potential effects like hand swelling and grip weakening, but notes the main issue is the annoyance it causes others.

What new insight or understanding did you gain from this video?