New Study About the Sound of Cracking Joints - …

By Dr. Mercola. In the 1970s, research was published showing that the sound your joints make when “cracked” is due to the popping of bubbles in the fluid between the joint. 1 New research published in PLOS One suggests this long-held theory may be wrong. The researchers used MRI video, which you can see above, to determine why joints make a popping sound when they crack.

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