what happens to your knuckles when you crack them?

Do you Recognize this sound? If you pop or crack your joints, you probably do. What happens to our joints when we crack them? And is it bad for you? Synovial fluid is this lubricant-like substance that’s found in between your joints. A kind of looks like an egg yolk. So when you stretch out your joint, you are releasing gas, and that gas forms a bubble and it collapses and pops. One man cracked his knuckles in one hand for 60 years and not the other. Watch the video to see what he found out



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