Why is it hard for me to perform simple mental calculations with certain numbers? [more inside]
posted on Jun 5, 2007 - 19 answers

I work at a national retail store full-time, and the majority of the time when I'm not working the register it's all very simple stuff like straightening and folding clothes. It only takes maybe 15%* of my focus. I need suggestions for things to think about, mental games, and methods of mental improvement to take up the other 85%. [more inside]
posted on May 18, 2006 - 25 answers

What does your brain do in the background while it's idling? [more inside]
posted on Jun 22, 2005 - 54 answers

I want to cultivate some good mental exercising habits. For that, I need some good, diverse sources for puzzles and activities. Specifically, I'm looking for, preferably free, sites with a decent database of verbal, logical, spatial, lateral thinking games. The format can be flexible, so crosswords are included. Also, games that test and hone reflexes and reactions are also welcome. Additionally, ADHDers are also advised to stimulate the cerebellum. Any help on that? Basically, I'd like a list of resources for complete brain workout, that can be performed atleast once every day. Obviously, I'm not looking for one site to include all of the above.
posted on Apr 20, 2005 - 25 answers