What Really Happens When You Crack Your Fingers

If you are used to crack your fingers, I believe that it’s have been told  to you a lot of times that you shouldn’t do this anymore. Today, I will give you some arguments to give to those who criticize you when you do that. Find out what really happens when you crack your knuckles.

A movie on Youtube shows that the thing you hear when you crack your fingers is actually a gas release. Although people claim that such kind of habit is very dangerous for bones, the researchers have no clear evidence to establish a link between fingers cracking and arthritis. Here is an interesting video about cracking your knuckles: https://www.youtube.com/watch?v=n3IYmdy6d4Y

When you crack your fingers, you only stretch the space between the bones, which is full of synovial fluid. This substance reduces the friction of joints whenever when you move your fingers, and contains gases such as oxygen, nitrogen and carbon dioxide. When you start to crack your joints, the space between the bones creates a negative pressure, like a suction, that attracts the synovial fluid. Bubbles occur because of the gas in this liquid, and when it breaks, you hear that annoying noise.

When it becomes dangerous to crack your fingers

When it comes to the danger regarding cracking your fingers, researchers claim that you shouldn’t worry unless you have pain. An interesting investigation into this was made by Dr. Donald L. Unger, while 60 years only cracked his fingers from one hand. He noticed that the hand with cracked fingers wasn’t more ill with arthritis than the one he did not put pressure on. However, a 1990 study has shown that this habit can lead to swelling of the hand and weakening it if it is done on long term, so try to not repeat this trick too often.

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