Hi HeroicWolf, in a few months I will be a licensed psychologist so this is one of the few topics I can answer with authority! hahaha
What LondonBoxer is saying is not wrong, however we have a problem with semantics, what is Mental Toughnes in itself?
Mental Toughness is domination of the mind over the body. In the same way we can argue that having a high IQ does not make you street smart, we can argue that there are different types of “Mental Discipline”. It is true that those situations in a military situation would get you killed, however, they are not soldiers!
What I’m trying to point out (english is not my native language so sorry for shitty spelling) is that these guys have abilites that work FOR THEM, and that’s fine.
There are also numerous factors that go on, like the amount of adrenalin that goes on in a fight. Sometimes you just don’t feel the pain till later, and it has nothing to do with mental toughness, it has to do with that you just don’t feel it!
A friend of mine was close to becoming a pro, one night after a fight his leg bothered a bit, his dad insisted to take him to the hospital but he said that after a cold shower he would be fine. That night he woke up at 3am with a blue throbbing leg, when he got to the hospital the doctor told him that if hadn’t woken up, they would have to amputate his leg! He had 3 FRACTURES.
Was my friend being “tough”? No, he just couldn’t feel the pain until the adrenaline backed down.
However, we can’t take the “mind over body” factor for granted. I think that when going out for a jog is when this factor is more evidenced, “one more mile, one more mile, just one more”.
Another example is when you haven’t worked out for a long time, and when you are back from the gym for the first time after the break you can’t stop flexing in front of the mirror, did you really get that much bigger from just one workout? Or is it your mind saying “you are awesome”.