In this study, led by Professor David Kennedy of Northumbria University, 30 students were asked to count backwards in groups of 3 from a random number between 800 and 999. The study found that the students performed better if they had first had a large mug of cocoa, they also got less tired.
Interestingly the effects of the cocoa seemed less pronounced when the task was made more difficult.
The reason for the improvement is down to compounds found in chocolate called flavonols which cause the blood supply to the brain to increase – hence the improvement in performance and reduction in tiredness.
It should be noted that flavonols also occur naturally in fruit and vegetables, although conducting experiments using fruit and vegetables would be nowhere near as interesting!
Click here to read the full report in Confectionary News.