all well and good, for a lot of people i know the more immediate concerns are the basic trilogies of diet/exercise/rest, and learning the tiger parent things your whole life (math, programming, foreign languages, musical instruments). These things work because they require sustained effort/concentration, adn dealing with frustration and plateaus

http://www.sott.net/articles/show/216086-Mental-muscle-six-w...

(the 6 things above: bright light, tDCS, food, exercise, playing music, meditation