Because of the age is very important in your performance starts to decline because the cells of memory decay over time. Even more good old long forgotten speech, might not.
Because of the very efficient in terms of memory will be reduced because of the memory cells start to deteriorate over time. The old saying goes, the more fascinated I may not remember.
Because of the age started very effective in the memory can be reduced because the cells memory begins to deteriorate in time, the more was more struck, forget, said it may not remember.