Willpower and Sugar

Apparently acts of will-power deplete glucose.

Acts of self-control deplete relatively large amounts of glucose. Self-control failures are more likely when glucose is low or cannot be mobilized effectively to the brain (i.e., when insulin is low or insensitive). Restoring glucose to a sufficient level typically improves self-control. Numerous self-control behaviors fit this pattern, including controlling attention, regulating emotions, quitting smoking, coping with stress, resisting impulsivity, and refraining from criminal and aggressive behavior. Alcohol reduces glucose throughout the brain and body and likewise impairs many forms of self-control. Furthermore, self-control failure is most likely during times of the day when glucose is used least effectively. Self-control thus appears highly susceptible to glucose. Self-control benefits numerous social and interpersonal processes. Glucose might therefore be related to a broad range of social behavior.

Is will-power then inversely related to insulin sensitivity?  It would explain why fat people keep getting fatter, and why it's easier for me to work out after work than before.  It would also explain why taking creatine or even plain old lemonade before a workout is so damned effective.

Gettin' all kinds of explainy up in this bitch!