An international team of researchers led by the University of Alberta have unraveled the mystery as to why the popping sounds occur when we crack our knuckles. Scientists used MRI video to determine the act inside finger joints, and observed for the first time, that the cause is a cavity forming rapidly inside the joint. Professor Greg Kawchuk, said that the study they call "pull my finger study" shows very clearly in the MRI what happens when someone's ...
via Medindia Health News More READ
via Medindia Health News More READ
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