I confess that I do not remember much about Christmas as a kid. It’s not that I did not have parents who lavished presents on me and my two siblings come December 25; they did! But ask me what those presents were, when I was 10, 11 or 12 – and it is tough to remember.   Scientists say that that is because part of the brain responsible for moving memories into long-term storage is still maturing. OK! However, someone once told me that 1 adult year is apparently equal to about