For memory, it is recommend ... to eat fish! Yes, the food is deemed to help you remember knowledge that you have in yourself and believe that you have forgotten. When you have an exam, it may serve you well.
But in addition to that , is also advisable to exercise regularly your memory, and for that, nothing like a good game of memory.
Memory games are puzzle games. In some, you must remember a sequence of numbers or symbols, while in others, you will collect pairs returning successively different cards.