- Oct 5, 2004
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My daughter cracks her knuckles all the time. It's been a wonderful habit that she's been at for a lot of years now (she's 13).
Does constant knuckle cracking cause permanent damage, or is it merely grating on the nerves?
It has the same effect on me that fingernails on a chalkboard has on people.
Does constant knuckle cracking cause permanent damage, or is it merely grating on the nerves?
It has the same effect on me that fingernails on a chalkboard has on people.