Why do your Knuckles make that Crackling Sound ?

Do Knuckles have mini crackers inside ? Why do these joints make such weird noises ?

Come lets Find the SCIENCE behind it....

Joints are basically connectors of two bones , hence to reduce friction between the bones they have a jelly like Synovial Fluid which acts like a Lubricant and prevents Inflammation of Joints.

This Synovial Fluid when stretched forms Nitrogen + Carbon dioxide bubbles which pop on contraction. This formation of bubble takes time which is called Refractory Period and that is why we don't get successive Knuckle Pops.

So the Final Verdict is that whether it is Diwali or Pongal you have a free natural eco friendly Cracker to burst.

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