Anger Management.

Have you ever wondered why tempers flare when one is tired? Yea, I've pondered about this a gazillion times. Only thing was that I was never diligent enough to find out the reasons why.

Now that I've put in the effort to search for a scientific or biological explanation on Google, I actually found nothing after half an hour of reading page after page of irrelevant journals and stuffs. Now, that was the first time Google has failed me. First time for everything, I guess.