Go with Heather. Starving yourself, or fasting, really does cause mental and pyschical problems. Ironically, if you eat less than 1,200 calories a day, your body goes into "starvation mode" as its called and it makes you lose weight VERY, VERY, SLOWLY...And any food you eat in starvation mode will almost compleetely be stored as fat. It seems like fasting would be an easy way to lose weight, but its really not. It can even mess up your heart and other organs. Don't try it. ^_^