Feeble Mindedness Resistant to Healing?

[Kristoffer O]

There are two levels of afflictions. IIRC serious ones (crippled, lost one arm, perhaps feebleminded) are rarer and more difficult to get rid of. Never healing wound is not a serious affliction, but more difficult to get rid of.

[Agrajag]

It just makes sense.
What would be easier to cure, a chest wound or severe trauma to the head? Or perhaps stitching back a lost hand...