http://www.sciencedaily.com/releases/2010/01/100125173444.htm

"Volunteers answered a series of questions asking if they would prefer to receive a certain amount of money tomorrow or a larger amount of money at a later date. They responded to seven of these questions before and after drinking either a regular soda (containing sugar) or a diet soda (containing the artificial sweetener aspartame). Blood glucose levels were measured at the start of the experiment and after the volunteers drank the soda.

"The results, reported in Psychological Science, a journal of the Association for Psychological Science, reveal that people's preferences for current versus later rewards may be influenced by blood glucose levels. The volunteers who drank the regular sodas (and therefore had higher blood glucose levels) were more likely to select receiving more money at a later date while the volunteers who drank the diet sodas (and who had lower blood glucose levels) were likelier to opt for receiving smaller sums of money immediately. These findings are suggestive of an adaptive mechanism linking decision making to metabolic cues, such as blood sugar levels."

Penelope

I just recommended your blog to 300 of my closest friends. :)