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Anonymous
>>407365 >>407382 >>407383 This is bollocks. If you had carbon dioxide in your joints you'd be in deep shit. The crackling noise comes from tiny bubbles forming (cavitation, like that produced by a boat's propeller) in the synovial fluid then collapsing. >just a release of air between the knuckles THIS is why you don't go to an animu board for health advice.
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