Scientists Have Explained What Actually Happens When People Crack Their Knuckles

Image: Meredith Rizzo via National Public Radio

Most people around the world have an annoying habit. From chewing your nails to picking your nose, some quirks can seem impossible to break. And while most habits are relatively harmless, others aren’t. For example, arguments have raged for years over whether or not cracking knuckles is bad for you. Now questions about the custom’s potential ill-effects have finally been answered via an intriguing scientific study.

The debate regarding joint cracking has continued for decades in the science field. It all started with a study published back in 1947. The experiment was conducted by J.B. Roston and R. Wheeler Haines, as they looked to discover the cause of what’s still a common issue. And, using serial radiography, the pair appeared to find an interesting answer.

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