Now the most important bit because I have been telling children in schools for years that chocolate makes you clever and scientific trials suggest chocolate consumption subtly enhances cognitive performance with scores for verbal and visual memory being raised by eating chocolate! Impulse-control and reaction-times are also improved! We also know that at a "symposium" at the 2007 American Association for the Advancement of Science more evidence was presented suggesting that chocolate consumption can be good for the brain. Experiments with chocolate-fed mice suggest that it stimulates neurovascular activity, enhances memory and increases alertness.
So whatever you do keep eating chocolate!