Meh, my skull is about twice as thick as the average skull, anyways. I often have things fall on the top of my head and don't notice until I see it. I like one of the explanations given by a user on this website: the less vitamin D you have, the more sensitive your Parietal bone (part of the skull) is.
- 727 Posts. Joined 3/2013
- Location: Texas
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