Functional?
You have to think about WHY you are doing something! *pause, re-read and reflect on that for a moment* Next, you have to think about HOW you are doing […]
Science
The opposite of play is not work, it is depression
by Robin Karlsson Below is a great TED Talk I think you should attend; if only to see a polar bear playing with a fettered husky (also available on YouTube). […]