Most of the resources i've used have confirmed my thoughts on my topic. Most believe that certain stimuli would benefit the general public but the major problem is to only get the positive side effects you'd have to extract certain chemicals and the chemicals that cause the positive side effects also produce the negative side effects so removing these chemicals would therefore render the drug useless. The effects and the amount of the drugs used are related closely so if you correctly monitored the dose depending upon the person using it then you could quite possibly get a majority of positive effects and limit the negative effects received.