WHY DO YOUR KNUCKLES POP? -
ELEANOR NELSEN
4,123,633 views
May 5, 2015
TED-Ed
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View full lesson: http://ed.ted.com/lessons/why-do-your...
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.
Lesson by Eleanor Nelsen, animation by Steve Belfer Creative.
Grateful
thanks to
TED-Ed
Eleanor Nelsen,
Steve Belfer
and YouTube and all the others who made this video possible
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