You probably don't want to hear this, but don't mess with your brain biochemistry. The brain is a delicate system and introducing artificial changes will probab

You probably don't want to hear this, but don't mess with your brain biochemistry. The brain is a delicate system and introducing artificial changes will probably harm you in the long term. Your question is also very broadly phrased. What do you mean by "win/lose" ratio? For what purpose would you take Nootropics?