If you want it to work
If you want your fingers to work, try http://www.kiransoftware.com/download/kktt.exe.
If you want your eyes to work, try http://www.medicinenet.com/script/main/art.asp?articlekey=23600.
If you want your brain to work, you might try http://www.forbes.com/lifestyle/health/2004/07/21/cx_0721htow.html.
If your electronics lock up and you want them to work, turn it off and try again.