I think of my brain as a “hot brain.” Like an engine. It runs hot and that’s a little dangerous. For most of my life, I’ve noticed that I need more rest than other people. Not necessarily sleep, but rest. My brain works overtime unless I force it to stop. Sleep is actually sometimes hard to do because my brain tends to churn even when I don’t need it to think about anything right now, thanks sweetie.
This is possibly the best descriptions I've come across of what it feels like to live in my brain!