Erowid Vaults are the reason, 10 years ago, that I was informed on which chemical drugs to avoid. Informing me of the physiological effects and molecular structure of certain drugs (at age 15) I was able to deduce which drugs would be worth exploring and which just seemed risky or downright harmful. I learned safe shooting techniques and the hows and whats regarding overdoses. Friends sought my advice based on what I had gleaned studying the vaults. This is an indispensable resource for the world.