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Here’s What Makes Your Knuckles “Crack” When You Flex ThemA 2015 study, which had people crack their knuckles inside an MRI machine ... not the bubble popping theory.” In the MRI study, they observed that the cavity remained for a bit before slowly ...
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Cracking Your Knuckles Could Be an Annoying Habit, Study Reveals the Secret of the ‘Popping’ SoundHowever, the MRI study showed that the cracking itself ... The volunteers then underwent ultrasound scans when they attempted ...
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