By 
Eleanor Nelsen
 | 
TED-Ed Original

Why do your knuckles pop?

Some people love the feeling of cracking their knuckles, while others cringe at the sound. But what causes that trademark pop? And is it dangerous? Eleanor Nelsen gives the facts behind joint popping. [Directed by Steve Belfer Creative, narrated by Addison Anderson].

Related tags:

health
human body
public health
animation
ted-ed
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