Mystery #4Tier 2-3brain / focus
Why does your brain feel like mush when you have not slept enough?
Miss a good night's sleep and the next day your brain feels like mush. Simple sums go wonky, you forget what you walked into the room for, and words sit on the tip of your tongue and refuse to come. Your brain has not shrunk or broken overnight. So why does being tired turn a sharp mind so soggy?
Your guess
Why do you think a tired brain finds it so hard to think?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
Make a guess to unlock the hints and the answer.