WILLPOWER X BM

"In recent years, researchers have identified glucose as one of the key nutrients needed by the brain for effective self-control. In one study, willpower seemed to drop whenever blood glucose levels dropped, and rise when they rose. In another study, where participants were asked to suppress their emotions during an emotionally provocative movie, researchers found that subjects who drank sugar-sweetened lemonade were able to exercise more willpower than those who drank lemonade sweetened with an artificial sweetener."