I've been doing some research on Piracetam the last few days (when I find the time).
From what I've gathered so far, I can find reasons why it may not be as beneficial to us younger guys, as it is for those 40, 50+.
I've heard that Piracetam used to be a popular drug amoung US politicians in the 70's, however, they made it available only by perscription to the public as a way to decrease its use. Looks like you can order it online now no problem.
Check out Modafinil. A drug that the US "may" be giving to troops to increase mental alertness, memory, focus and make it easier for them to stay awake for long periods when needed.
I'm going to continue my research and would love any feedback, or information on any of these.