This article from The Register illustrates how spare processor time from ordinary home computers is harnessed for medical research. A great deal of computing time is required, but fortunately we can all help! In this case, donated processing power is used to run valuable tests for potential anti-cancer drugs. I recommend trying Folding@Home, a Stanford project that sets its sights on Alzheimer's and other similar conditions. Download the client and join our folding team today -- this is a painless way for people like you and I to participate in vital research for a better, longer life.