Sobering reminder. Performance = output/time. so the timeframe is critical. its trivial to increase productivity in the "short term". in ways that are unsustainable (or: unhealthy). Exogenous modification of brain's chemistry is, however, rarely healthy, over long-time-horizons. At least given the evidence to date.
Yeah, but when you think about, everything you put in your mouth is an exogenous modification of, at least your body's chemistry, if not your brain's chemistry.
We live in a world of gray areas, not black and white.
There's sense, and common sense. lots of things in nature will kill you if you eat them. lots of things in nature are unhealthy if you eat them in excess, over the long run. phschoactive drugs? are no different, even naturally occurring ones in food-like form. common sense and experience will illustrate that your body is ~self-regulating. if you f@ck with it (too much), it will f*ck with you back. =/
