"Exercise is the single best thing you can do for your brain in terms of mood, memory, and learning," said John Ratey, a psychiatrist from Harvard Medical School.
John Ratey loyi a nga profesa wa vutshunguri bya miehleketo wa le Xikolweni xa Vutshunguri xa Harvard u ri: "Vutiolori i nchumu wun'we wa nkoka lowu u nga wu endlelaka byongo bya wena."