History Main / MasterOfYourDomain

* The Pillar Men from ''Manga/JojosBizarreAdventure: Battle Tendency'' take this trope to [[BodyHorror sick]] [[LovecraftianSuperpower extremes]], being able to manipulate their bodies in various ways, from using their rib cages as bear traps to using their blood vessels as tendrils that spit boiling blood.

* Ikki Kurogane from ''LightNovel/ChivalryOfAFailedKnight'' can do things like manually move the muscles of his heart to make it beat after it was stopped by Amane or understand every muscle inside his body and even able to count the dust on his skin.
* ''LightNovel/ACertainMagicalIndex'': Seria Kumokawa can use autohypnosis to block out pain from injuries [[spoiler:including having an eye removed]].

* Franchise/{{Batman}} has done this tons of times, usually in the form of slowing his heart to fake death or conserve oxygen.
* Franchise/{{Superman}} has done it too, slowing down his heartbeat to fake death and escape imprisonment as Clark Kent.
* [[ComicBook/RobinSeries Tim Drake (Robin III/Red Robin)]] can slow his heartbeat to fake death or slow blood loss and can continue listening to his surroundings for about a minute after being drugged into unconsciousness if he has a bit of warning.

* Creator/MarvelComics:
** ComicBook/{{Apocalypse}}, the ''ComicBook/XMen'' villain, has this down to the molecular level, making his VoluntaryShapeshifting exceptionally powerful and even allowing him to rearrange body parts so fast that [[SuperSpeed Quicksilver]] can't dodge his attacks.
** Most mid-to-high-level Franchise/MarvelUniverse martial artists have been shown to have this ability, mostly for healing and faking death. Comicbook/{{Daredevil}} can speed up his healing via meditation as can ComicBook/{{Elektra}}, ComicBook/IronFist and ComicBook/ShangChi.

** ''Series/{{Daredevil|2015}}'':

* In the ''Series/{{Star Trek|The Original Series}}'' episode "Where No Man Has Gone Before", the newly psychic Gary Mitchell can control his heart rate.
* In one episode of ''Series/{{The Incredible Hulk|1977}}'', the main guest character was a cop who was also involved in martial arts, who could turn his pulse off during meditation. He and his sensei tried to help David to use meditation to suppress the change.

* ComicBook/{{Apocalypse}}, the ''ComicBook/XMen'' villain, has this down to the molecular level, making his VoluntaryShapeshifting exceptionally powerful and even allowing him to rearrange body parts so fast that [[SuperSpeed Quicksilver]] can't dodge his attacks.
** Most mid-to-high-level Creator/MarvelComics martial artists have been shown to have this ability, mostly for healing and faking death. Comicbook/{{Daredevil}} can speed up his healing via meditation as can ComicBook/{{Elektra}}, ComicBook/IronFist and ComicBook/ShangChi.

** The mutant villain known as Courier had the power of 'endopathy' which lets him communicate with his own body's cells. Among other things, he can change gender, tune his body to evade mutant-gene scans and regenerate from injuries (albeit he is subject to conservation of mass.)
** Mystique, while a mutant shapeshifter, has shown the ability to move vital organs to safer locations in order to survive getting shot and play dead.

** ''Series/{{Daredevil|2015}}'': Stick uses meditation to heal injuries and live longer than he has any right to.
** Nobu of the Hand can slow his heart rate and lower his body temperature, and his dialogue indicates that this is standard tactic for the Hand.

* Fiona hin'Connaill of the podcast web serial ''Podcast/MetamorCity'' is an "egoist" i.e. a psychic whose power is the ability to control and/or enhance any of her physical traits at will. So is Miriam.

* ''WesternAnimation/AvatarTheLastAirbender'': Avatar Kyoshi's supernaturally extended lifespan comes from one of her teachers (albeit in the novelization ''Rise of Kyoshi'') showing her how to do this.

* Xander in the Journeyverse series has an increasingly thorough mastery of his body; he is able to pump more blood to his brain to stay conscious under high-gee conditions and heal wounds faster via meditation. He is even able to force a Goa'uld symbiote out of his body by making it an unforgivably hostile environment (he reversed the flow of carbon dioxide into his blood, pumped out toxic amounts of adrenaline, stopped his kidneys -- all while keeping his brain alive just long enough.)

->''“With the right mental focus, you could take an inventory of your own body and place each little piece that’s not where it should be back into the correct order.”''

** ''Series/Daredevil2015'': Stick uses meditation to heal injuries and live longer than he has any right to.

[[folder:Web Comics]]

* ''Webcomic/SchlockMercenary'': Carbosilicate [[BlobMonster Amorphs]] have voluntary control over their own biochemistry, Schlock usually uses it to [[ExtremeOmnivore eat anything]], but he's also used it to neutralize the digestive juices of bigger predators and to fight off NanoMachine infections.

* ''Wiki/SCPFoundation'': SCP-1475 is a man who created a drug that allowed him to use [[NinetyPercentOfYourBrain 100% of his brain]], giving him complete control over his own body to the point where he [[TheSleepless rewired his brain to remove the need for sleep]]. However, in a {{Deconstruction}}, he now has to do manually what his body used to do automatically. Like keep his heart beating and digest food. As a result, [[AndIMustScream he is left permanently bedridden]] because keeping himself alive takes up so much of his concentration that he can't do anything else.

* Almost every book by Creator/PoulAnderson features biofeedback. ''The Boat of a Million Years'' has Hanno the immortal who learned to accelerate his own already enhanced healing (he ''was'' an immortal after all).

* Axel Brass (an {{Expy}} of Franchise/DocSavage) in ''ComicBook/{{Planetary}}'' has these powers.

* ''Manga/YuYuHakusho'': Doctor Kamiya can turn off his ability to feel pain, overclock his adrenaline production and muscle function or even reattach severed limbs.

* ''Manga/YuYuHakusho'': Doctor Kamiya can [FeelNoPain turn off his ability to feel pain], overclock his adrenaline production and muscle function or even reattach severed limbs.

* Ryoko in ''Anime/TenchiMuyo'' (OVA continuity) is ImmuneToDrugs, thanks to being a genetically engineer superhuman. But only when she ''wants'' to be immune. Since Ryoko [[HardDrinkingPartyGirl loves getting drunk]], she turns this ability "off" ''a lot''.

* ''Wiki/SCPFoundation'': SCP-1475 is a man who created a drug that allowed him to use [[NinetyPercentOfYourBrain 100% of his brain]], giving him complete control over his own body to the point where he [[TheSleepless rewired his brain to remove the need for sleep]]. However, in an extreme case of BlessedWithSuck, [[{{Deconstruction}} he now has to do manually what his body used to do automatically. Like keep his heart beating and digest food.]] As a result, [[AndIMustScream he is left permanently bedridden]] because keeping himself alive takes up so much of his concentration that he can't do anything else.

* ''Wiki/SCPFoundation'': SCP-1475 is a man who created a drug that allowed him to use [[NinetyPercentOfYourBrain 100% of his brain]], giving him complete control over his own body to the point where he [[TheSleepless rewired his brain to remove the need for sleep]]. However, in an extreme case of BlessedWithSuck, he now has to do manually what his body used to do automatically. Like keep his heart beating and digest food. As a result, [[AndIMustScream he is left permanently bedridden]] because keeping himself alive takes up so much of his concentration that he can't do anything else.

** Gumball claims to possess this in "[[Recap/TheAmazingWorldOfGumballS2E20TheVirus The Virus]]", and he proves it via AbnormalLimbRotation (which also involuntarily rearranges his internal organs and forces him to visit the infirmary).

* The 2008 ''Film/TheIncredibleHulk'' movie has Banner learning to suppress his transformations with ujjayi breathing and meditation. [[spoiler: It was also used later to trigger a controlled transformation]].

* In one episode of ''Series/TheIncredibleHulk1977'', the main guest character was a cop who was also involved in martial arts, who could turn his pulse off during meditation. He and his sensei tried to help David to use meditation to suppress the change.

** Most mid-to-high-level Creator/MarvelComics martial artists have been shown to have this ability, mostly for healing and faking death. Comicbook/{{Daredevil}} can speed up his healing via meditation as can ComicBook/{{Elektra}}, [[ComicBook/IronFist Danny Rand]] and ComicBook/ShangChi.

* This on crack is basically how active use of the Predator Trait works in ''WebAnimation/HoloChronicles'', though different people use it in different ways. For a few examples, Gura allowing her instincts to take over allowed her to enhance her strength and speed, Okayu enhances both her physical strength and stealth capabilities, and Botan amplifies her sensory capabilities to the point of apparent precognition.

It can be due to [[CharlesAtlasSuperpower extensive training]], to BioAugmentation, KiManipulation, {{Nanomachines}} or just be a [[StockSuperpowers Superpower]]. As explained in [[http://en.wikipedia.org/wiki/Biofeedback the other wiki]] and in RealLife below, this can also be TruthInTelevision.

** Most mid-to-high-level Creator/MarvelComics martial artists have been shown to have this ability, mostly for healing and faking death. Comicbook/{{Daredevil}} can speed up his healing via meditation as can ComicBook/{{Elektra}}, [[ComicBook/ImmortalIronFist Danny Rand]] and Shang Chi.

* In the Literature/{{Discworld}} novel ''Literature/ReaperMan'', Windle Poons has to assume direct control of all his bodily functions when he becomes a zombie. It's not just that he's ''able'' to control them, it's that he ''has'' to. The reason for the ZombieGait is apparently that they have to work out how leg muscles actually ''work'' from first principles.

* In the Literature/Discworld novel Reaper Man, Windle Poons has to assume direct control of all his bodily functions when he becomes a zombie.

* ''Fanfic/AbraxasHrodvitnon'': After Ghidorah's middle head ate Vivienne alive, her body was willfully regurgitated into the left head's (San's) neck to keep her intact so she could be revived and biologically reshaped to Ghidorah's desires (though not before she'd been partly digested by Ghidorah's stomach acids). San's decapitated head is subsequently able to both keep Vivienne alive in a coma inside itself and metamorphose her into an ArtificialHybrid, while also forming a second head on the transformed Vivienne which San's mind can transfer into via BrainUploading.