Age & Brain : what is "changing" (not degrading but maybe improving) is the mind organization : the way to index information as in a database growth too much

My feeling as old man of 63 is that the age not impact the memory functionality as the info is stored correctly in the brain. I think what is "changing" ( not degrading but can be a improvement maybe ), what is changing is the mind's organization and especially a different way to index the brain content. So you can have the information but not know how to reach it. This is a typichal problem in all the databases when they are growing too much or when they had big change in content