Although Carolyn has no direct memory of the experiment, and the scientists would not release any information about the subjects, she strongly suspects that she was able to delay gratification.

NEWYORKER: Don��t!

The researchers also found a direct link between the number of tangles and scores from memory tests carried out on the eight people before they died.

BBC: Clue to old age memory loss

Other improvements include more memory and the inclusion of a year of MSN Direct service.

ENGADGET: Switched On: The gist on your wrist