There’s more to this, in fact there’s a lot more and it’s all to do with improving your memory or something, but I focused only on tip number 1:

1. Nibble on chocolate: Just this week, we learned that eating chocolate might lessen age-related memory loss. Columbia University researchers studied almost 40 adults between 50 and 69 years old, and found that those who drank a high-flavanol cocoa mix every day for three months performed better on memory tests and had higher activity in the area of the brain linked with memory

Ways To Boost Your Memory – Samantha Zabell, Real Simple (no date)

Read the full piece for the rest. Best to get a bar of Bournville dark chocolate first, though. For some reason. Hat tip to Time magazine for spotting this on 31 December 2014.