Respuesta :

The brain can indeed become tired. this is why when you do alot of studying and homework, you take breaks. Also, this is a major reason why we sleep. 
JabbaDaHutt
Yes. Just like the muscles in our bodies, your brain gets tired to. It's good to get a good nights rest. Also, even though it seems you can multitask, our brain was not designed to do so. Therefore, making us tired.