Congrats for ur future buddy... I hope u did well all the years and flourished this much and come up in life...and doing medicine... All the so called smart drugs are there for past few years only in the market. Do u think all the great doctors, who are achieved and achieving are consumed and consuming that? What makes u think, after consuming u can be stable ,(coz not tested properly on humans) Do u think ur future will be determined by test tube drug .??? All these years u didn't needed it y.( I mean it school , college and sports)?