Bread, cheese, cake, biscuits, chocolate...is there anything you'd like to add to the list of food that you crave in the late afternoon? For me, it was always cheese. I'd stand in front of the fridge with the door open and cut off slice after slice...well, it would be rude to cut off a huge chunk all at once, although that's what I used to do when things got really bad. So why, if we know we shouldn't, do we? Before I get into that, I'll go into a bit of science... don't worr