Yawning again tonight. I was going to write a post about about a nifty video I found about yawning. Apparently it's not necessarily about getting more oxygen.
Basically it says that "yawning has developed as a way of physiologically cooling your brain." And "exhaustion and sleep deprivation are known to increase overall brain temperature."
But I don't really feel like writing anything. I think I'm just going to fill my ice bag, put it on my head, and go to bed. Tomorrow's another workday.