But you're the one applying the force. Look at the karate guys that smash bricks. If a brick hit your head that hard I'm sure your head would break.
i am holding a 25lb steel hammer.
I am an expert at wielding it.
If I break it, I can always pick up another at the local smithy.
I haven't seen any lore re:neurosurgeon in skyrim.
So I'm just wondering in what capacity would it be beneficial for my character to close with a nearly dead enemy and head-butt them.
This makes no sense tactically either, since I am willingly giving up all the advantages of my weapon (reach, leverage, etc).