# Regeneration
Regeneration is a property that speeds the recovery of HP drastically; your character gains 1 HP on every turn (s)he would not normally do so.[1]
It is acquired as an extrinsic through putting on a ring of regeneration or wielding the Healer's quest artifact, the Staff of Aesculapius. It can only be acquired as an intrinsic by eating a ring of regeneration if the ring is of suitable material and you are polymorphed into a monster that can eat it, or by polymorphing into a monster with innate regeneration: all vampires, vampire bats, werecreatures, imps, lemures, quasits, all trolls, all liches, Archons, the Wizard of Yendor and Riders.
Regeneration also burns nutrition faster; namely, one point of it every odd turn, unless the source is an artifact.[2] Note that a digested ring of regeneration will use nutrition. This may be a good or a bad thing, depending on whether there is a scarcity of food or a corpse that you wish to eat; the former tends to be the case in the early game, whereas the latter situation is common in the late game.

See also
Hit points
References

↑ allmain.c in NetHack 3.4.3, line 166

↑ eat.c in NetHack 3.4.3, line 2137

This page may need to be updated for the current version of NetHack.
It may contain text specific to NetHack 3.4.3. Information on this page may be out of date.
Editors: After reviewing this page and making necessary edits, please change the {{nethack-343}} tag to the current version's tag or {{noversion}} as appropriate.