Cortisol is primary source of stress, and its crucial specially to people working at night and sleep less than eight(
hours a day. When cortisol is high and you are under stress, carbo craving increases. When you have carbo diet, the sooner you become hungry again. So, the more you do this diet it resulted direct blood sugar increases, cholesterol increases specially eating after midnight when your liver doesn't operate at its day function filtering the toxins in the foods, faster fats absorption, then eventually visited by heart attack earlier even in the 20's.