a substance known as i said it mean has been causing a stir recently people have been alarmed by a number of fatalities. in the one nine hundred seventy s. speech became illegal in many countries unless prescribed because of the serious side effects still speed and all kinds of other drugs are widely used for fun and now increasingly for that purported neuro enhancing effects aside from l.s.d. therapy to block and murdoch to know a methyl friend a tight often called by the brand name ritalin first quite now is a psychopharmacologist he says the intervening twin haunts one function comes at a price because the brain is a vastly complex network of networks that story system billeted in response to interventions by countering them when he saw unsubstantiated take such as substance the desired results are often offset by ones i don't want my motivation in alertness might be enhanced but other cognitive capacities will be diminished. one