For non-smart drugs start by getting lots of cheap medical tests on things like your vitamin D level, magnesium level, lipid profile and whatever else your doctor recommends.
For smart drugs: http://www.reddit.com/r/Nootropics/ and as Sjcs writes Wikipedia and Examine.
Smart drugs? Drugs that are a smart choice or drugs to make me smart?
Drugs that make you smart.
For non-smart drugs start by getting lots of cheap medical tests on things like your vitamin D level, magnesium level, lipid profile and whatever else your doctor recommends.
For smart drugs: http://www.reddit.com/r/Nootropics/ and as Sjcs writes Wikipedia and Examine.
Smart drugs? Drugs that are a smart choice or drugs to make me smart?
Drugs that make you smart.