Speaking of thinking… 

Here is an interesting fact about the human brain:

 The brain does creative work better when it’s tired.

 If you’re tired, your brain is not as good at filtering out distractions and focusing on a particular task. And because of that, it’s less efficient at rejecting subtle distinctions among competing ideas. But this makes for an advantage when it comes to what we call “creative thinking.” Because creative thinking often involves seeing connections that the focused brain might reject. In other words, when your brain is fuzzy, it can take advantage of fuzzy logic and thus be open to new ideas.

Click here to read a Scientific American article that explains how distractions can actually be a good thing for creative thinking.