I have always had an exceptional memory and compared to most people I still do.  But in recent years, I have noticed it is not what it used to be.   I have a harder time remembering names and events.  Sometimes in the middle of a sentence, I cannot come up with a word.   I just can’t quite pull it out.    It’s not all the time but I notice it.   I have regular check-ups and my doctor says everything looks fine and chalks it up to aging. (I am now 58 and very fit)    I’m okay with that but wonder if I am doing everything I can to preserve / enhance my brain function.    Should I consider gingko biloba?   would that help?    I actively work my brain daily:  Sudokus, daily;  working on learning new languages constantly; crossword puzzles,etc. Are there other things I can do to improve my memory again?