Monocyte Breeder

Monocyte Breeder is a Fallout: New Vegas perk.

Requirements
This perk is not available during level up, but rather must be purchased. It's an implant named the PHOENIX Monocyte Breeder which may be purchased from Doctor Usanagi at the New Vegas Medical Clinic for 12,000 caps, through the use of an auto-doc. It is designed to gradually heal damage over time.

Effects
Regenerate 1 HP for every 5 seconds.

Note

 * In Hardcore Mode, sleeping on a bed you do not own (or did not rent) does not heal the player, and thus consumables are the only source of healing; with this perk sleeping and waiting will heal based on the equivalent in real-world seconds to the in-game time passed. Fast-traveling will also heal the player for the estimated amount of game-time that the player travels through. Therefore, the healing rate is almost instantaneous, save for the loading sequences between each fast-travel.
 * Since it takes so long to fully heal the player, this effect is only valuable outside of battle.
 * Players will find that this implant is very useful during the Dead Money add-on because of the short supply of Stimpaks.
 * Waiting 1 minute in game will restore 12 HP.
 * Because you restore health over time, theoretically if you don't take damage too fast you can't die.
 * Individual limb health is not affected by the regeneration; these must still be healed by normal means.

Behind the Scenes

 * Monocytes are a form of white blood cell (leukocytes) which react to inflammation signals and differentiate into infection-fighting cells to protect the body from disease.
 * "Phoenix" is probably a reference to the Greek mythical firebird. Most accounts say that the bird was an immortal creature: at the time of death, it would ignite, burn to ashes, and be reborn from them.