Absence of any pain or fear could be detrimental to one’s health. Pain & fear serve to inform us that something is wrong.
It would be very helpful for a massive army of soldier zombies..................
True, but you wouldn’t get anxious about it.
Exactly. I saw a documentary on a couple of people who did not feel pain and they were unknowingly destroying their bodies.
They could not tell if they broke a tooth, or a bone, or had an infection or ruptured appendix, or cut themselves badly and were bleeding out.
Apparently they were constantly biting their tongue and had no idea.
While I am no fan of pain, it does serve a purpose.