agreed itd interesting, but i think there is more than physiology to it, but some psychology as well.
im expecting flames, as i realize this is a shitty explanation of my theory on my part.
EDIT:
While I think that there is no doubt that there are certain factors that contribute to a “granite chin”, I humbly question some of the points being put forth in the article.
To be specific, I think there is obvious logic in suggesting that the strength of certain neck muscles (e.g.- the sternocleidomastoid) can help a fighter retain rigidity when being struck.
I do NOT agree that multiple shots would necessarily weaken these muscles, in fact I think the opposite carries as much credibility- the more the muscles are employed to maintain posture, the stronger they should become.
IMHO, and I admit this is based on personal experience and observation, there is a flash moment when a fighter is given the subliminal option to “g out”, which to a certain extent is, I believe, a choice.
I think its interesting to note most fighters that are thought to have a “granite chin” are also known to showcase a certain stubbornness in all areas, even be it contract negotiations.
All of the fighters that come to my mind in this category – (Hunt, A Silva, Hendo, Nelson, etc) are all known to have obstinate personalities, and I think that when given the subtle option of going out, their mind simply chooses not to, in the same way that they often choose the harder road in all areas of life.
Im not aware of any “granite chin” fighters who are also known for being weak minded, which suggests to me that there is more than just physiology at work here.
Once a fighter gives in to this subtlety, and DOES go out, their body finds a much more comfortable ending, thereby making the decision easier to make each time.
Again, just a personal theory, hopefully my edit explains my opinion better. Sorry for long read.
