The New York Times ran an article pointing to the connection between insufficient amounts of B-12, and brain shrinkage among older people. This sparked a comment from Mike Adams, of Natural News - which follows the piece.
From the New York Times:
September 9, 2008
Aging: Lack of B12 Linked to Brain Shrinkage
By NICHOLAS BAKALAR
Failure to [...]
when you say brain shrinkage...does this cause an indentaion in the middle of the head. there's a sinking/indentation in the middle of my head! it's tender to the touch. i have done research and a lot of the comments on another website seem to think it's related to B12 Def. because the bones can weaken in the area. I dont agree, but can you go into further detail