Not that I would recommend it, but some people do have extreme cravings when it comes to sugar. (coachcalorie.com)
When the glucose in your blood stream is swinging high and low, the nervous system (brain) will be affected, leading to nervousness, irritability, anxiety and headaches... not to mention extreme cravings. (fxnutrition.com)
*** Based on a 10 point Likert scale (with higher scores indicative of more extreme cravings or greater ability to control gambling) (basisonline.org)