They really have such a bad relationship with food, or more so Calories. They instantly think calories are bad, when in fact, the body required calories as a source of energy. Instead they eat as little as possible, restrict themselves of good wholesome food because it may have a bit more calories in it. This may be the reason why you're always finding that you both need to nap during the day, cause your body is crying out for energy, which you get from calories.