Is Cracking Your Knuckles Bad For You?

What happens when we crack our knuckles? Where is that sound coming from? Is it bad to do it?

Well, contrary to popular belief, cracking your knuckles does not hurt your bones nor cause arthritis. The sound that you hear is simply gas bubbles bursting.

You see, your joints are surrounded by a membrane which forms a capsule around the ends of your bones. Inside this membrane is a fluid, the synovial fluid, which acts as a lubricant and shock absorber so your bones don’t grind together while you move. So, here’s what happens when you hear that ‘cracking sound’: (the article continues after the ad)

When you crack your knuckles, what you actually do is that you stretch out the joint releasing gas. That gas forms a bubble and it collapses and cracks and It does not make any damage to the bones. In order to crack the same knuckle again you’ll have to wait around 20 minutes for the gas to return back to that fluid.

However, you are not advised to do it too much though as it can cause tissue damage.

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