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Many people across the globe are
habitual of cracking knuckles. They do so while working or watching TV. Do you
know that what happens in your joints when you crack you knuckles? And from
where that distinctive knuckle cracking sound comes from? Here I am going to
tell you about it.
Scientists
have used ultrasound machines to find out exactly what happens in our joints
when we crack our joints. A paper was published by the researchers from
university of Alberta, based on MRI images of finger joints. According to this
paper the distinctive sound caused by the collapse of air bubble formed in the
fluid that covers the joints called synovial fluid. Just watch the following
video for complete information.
