which can trick your brain thinking you are eating chocolate when you are eating broccoli. and then there is this thing. researchers say it tricked dieters into feeling fuller by making them the -- the food look bigger. and the senior member of a tech site is here. this is dumb. one of these things changes the food to a color of blue. >>guest: i brought glasses. >>shepard: for real? >>guest: you get blue glasses and the idea behind it is that, of course, that looking at food through a blue glass could make it look less appetizing. >>shepard: or you could look leak you are losing blue