Little anecdata that agrees with your sentiment: I did regular meditation sessions almost daily (basic concentration exercise where you focus on breathing) thro

Little anecdata that agrees with your sentiment: I did regular meditation sessions almost daily (basic concentration exercise where you focus on breathing) throughout my middle school and high school years and finished high school with highest grade average possible (that was in Vienna, Austria). It was even more surprising as the time that I felt was necessary to invest in order to achieve these grades went down over the years and not up.