I would say creativeness....
My mind is always running 110%. It just never shuts off. My IQ is somewhere around 140. I am always thinking about something. I am thinking of ideas for my songs or music, sometimes its an idea to invent something, sometimes its a story to tell.
I keep telling myself that one of these days, I will write the next hit song, or invent the next big product, or rethink how a process is done. My current job is boring, so I am constantly thinking of ways to make it easier, faster, more comfortable, etc. If I didnt bring some creativeness to it, I would probably go insane. I look at everyday things and ask myself how could I improve on that?
The side effect of that though, is that I constantly worry and stress over things. If I am not doing something creative with my brain, its just worrying and stressing over things instead. I get that from my grandmother. She was a great artist and photo retoucher. She had this amazing creative side, but when she wasnt being creative, she was in constant worry.