脳

no uchi wa tsukareteru kara yasumou

I'm tired, so let's take a break.

fukuzatsu na mondai o kaiketsu suru ni wa, nō o saidaigen ni katsuyō suru hitsuyō ga aru.

To solve complex problems, it's necessary to utilize the brain to its maximum potential.

no uchi wa kudameru ni ha no uchi wa yasumeru mo arukerede

To train the brain, it's also important to rest the brain.