Lumosity.com

Philadelphia (CBS) -- OK, this site may make you feel pretty nervous about yourself.

is a bit of a workout … for your brain. Log on and have your brain tested. You'll be asked to click on the screen and then guess at certain games. At the end, you'll see your score. Don't be alarmed, my first one wasn't great, either. Of course the goal is to keep testing yourself –and your brain – to exercise it and improve your score.

Go to Lumosity.com.

Reported By Bob Bicknell, KYW Newsradio Tech Reporter