The body is affected by recoil. Anyone that says they can shoot all day long with no affect by recoil is full of crap.Recoil is punishing, the body does not like it.
The above is certainly true, though going to the far, far extreme to make a point muddies the issue somewhat.
The question is how to best manage the recoil of the friskier cartridges.
The friskier cartridges are not gallery guns and you are NOT going to shoot them "all day long."
The question is "how are you going to shoot them enough and well" in order to get the job done.
It is true, if you are sitting there saying, "don't flinch, don't flinch, don't flinch" you are screwed. All that is, is hoping to move away from something you don't like, rather that moving towards something that is positive.
** Informed, hands on, thirdparty guidance,
** Physiology,
** Mechanics and Physics,
** Psychology,
** Execution.