On the subject of brain training, there has been a surge in the number of computer games that claim to be good for the grey matter: keeping the thought processes sprightly and the mind sharp. I think its a great idea, something to suppilment a bit of suduko or a crossword over coffee. Most of these are on the Nintendo DS, and the most popular title is Dr Kawashima's Brain Training.
The reason I mention this at all is that I became obsessed with the damn thing before Christmas; not because it is addictive, and not due to an overriding desire to greatly improve my mental capacity.
