The World's 2nd-Smartest Man Reveals The 'Brain Drugs' That He Thinks Make Him Smarter

Do not do this without talking to your doctor. He acknowledges that there is no real research supporting most of the stuff he does.
http://finance.yahoo.com/news/worlds-2nd-smartest-man-reveals-180300411.html

Even though Rosner swears by his supplements, research supporting his use is scant to nonexistent. Supplements are almost completely unregulated and may contain substances beyond, or instead of, what's advertised on the bottle. In some cases, they can be harmful.

"In college, the only chemistry class I passed was Chem 099 for football players and idiots," he tells Business Insider UK. "Scepticism is advised. At the very least, Wikipedia this stuff."

Better yet, talk to your doctor.