Over the weekend there was a very topical subject explained on the cbeebies programme, Nina and the Neurons. It was all about why people need sleep and that when people sleep the brain sorts out all the information taken in by your senses throughout the day.
If you missed it why not watch it on BBC iPlayer: http://www.bbc.co.uk/iplayer/cbeebies/episode/b01554dc/Nina_and_the_Neurons_Nina_and_the_Neurons_Brilliant_Bodies_Sleep/
There is also another episode you could watch about memory.
Hopefully it should help to reinforce your learning from Brain Box week.