For years we've heard the best ways to keep your brain sharp as you get older is to go for a walk, read a book, or do a crossword puzzle. No question, they all work to make the synapses between brain cells happy. But if youre looking for instant gratification and smarts- log onto a computer.

A new study of people 55 and older shows those who are introduced to the computer and then used it regularly, showed improvement in memory, word recall, problem solving... you name it- all within seven days.

Thats right, seven days. Sounds like a commercial. Yet this study used actual brains scans to show improvement in blood flow and brain cell communication after people took to the keyboard. And the number one activity that was brain friendly: doing an internet search.

So, if youre looking for the ideal present for Mom, Dad, or grandparents, the web may be just what the cerebral doctor ordered.