nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqfaamn3h0axkv0t8jr9t5aqw743pe0flufgrl98k2rjlcvnlp2twst4d0yj (nprofile…d0yj) Personally, I have been losing nerve sensitivity over my life and so I may not even notice minor cuts and scrapes anymore. I find this aligns with my memory of elders, who seemed not to realise when they'd injured themself.
At least some of this stuff seems to be well-known but also include various "well, not sure why that works" shrugs from my scan of more recent papers around the topic. https://doi.org/10.1016/j.neuroscience.2021.02.015