[...] lesions in Wernicke’s area, located in the left temporal lobe, result in excessive speech and loss of language comprehension. People with Wernicke’s aphasia speak in gibberish and often write constantly. In light of these traits, Flaherty speculates that some activity in this area could foster the urge to blog.
I think I can safely say that do not suffer from this mysterious activity in Wernicke's area. Well, that's one less thing to worry about, I suppose.