How to Beat It: You’ve heard the phrase “out of sight, out of mind,” right? Well, it works. When office workers were given candies in clear dishes to place on their desktops, they helped themselves to candy 71 percent more often than a similar group that was given the same candy in opaque dishes so the candy wasn’t visible, according to research out of Cornell University. The same goes for those decadent leftovers: stash them toward the back of the fridge and keep the apples up front.
Next Slideshow: "Healthy" Holiday Food to Avoid (And Healthier Foods to Eat Instead) »