What makes you think that mental fortitude is not required for physical toughness? You got it backwards, it's the mind that says the body to quit. Do harder th

What makes you think that mental fortitude is not required for physical toughness? You got it backwards, it's the mind that says the body to quit. Do harder things progressively. Personally I recommend a certain style of Chan meditation, but its not easy to stick to its training plan. To bootstrap, the easy way is to do it in group so you don't quit - MMA, stoicism whatever is OK but there is much more to mental toughness than that imho.