Folding@Home
http://folding.stanford.edu/
I urge you to download this small program, and donate your unused CPU power to science. It may be a small step, but with the public helping science along so far, there may be a whole world of changes possible.
As I don't have a Ph.D. in Chemical Biology, Neuro Chemistry, or Genial/Cellular Biology, I can't really explain in depth about what the effort is. However what I can tell you is that by helping out with this noble cause may lead science to conquor many of the aformentioned diseases. Or at least take a stab at it.
I am in the PhoenixLabs team (the ones who made Peer Guardian.) 41596 is the team number if you are intrested in joining the fight for cures.