Use your noggin

I seem to be on a theme of brain related postings, but here is another

"This is a demonstration that, over a relatively short period of time, patterns of brain activation while engaging in cognitive activities change,"

http://health.usnews.com/articles/health/healthday/2009/10/19/web-surf-t...

Searching and exploring showed brain improvement. Which feeds my previous link about feeding your brain. It wants information, and learning makes it happy.

As should be expected, if you use your brain to think, it gets more exercise. If you let it idle it gets lazy and I suspect sad in a biochemical sense anyways.