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Temporal Sickness

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"Time travel's a bitch."
Sawyer, Lost

Simply put, the notion that time travel makes one physically ill. May be merely annoying, or potentially fatal.

Usually, it is stated or implied that this illness is due to repeated jumps through time, and thus has the effect of limiting the characters' ability to take advantage of potentially story-breaking technology.

Compare Teleportation Sickness. Not to be confused with the feeling you get when thinking about time travel too hard.

May cause disorientation that results in someone demanding to know from passersby what year it is.


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    Anime and Manga 
  • Mizuki's time travel artifact from Kamisama Kiss exerts a physical toll on the person directly proportional to the amount of time they spend in the past. After one trip, Nanami couldn't hardly move for a few days.
  • Sailor Moon: When Usagi and the Outer Sailors were standing in a elevator-like time portal in the manga, Usagi suddenly starts banging on the glass and complaining that she was going to puke. She never actually does though. And of course, Haruka has to go and make fun of her.
    Haruka: Not even Super Sailor Moon can battle the forces of gravity.

    Comic Books 
  • Justice League of America: When the Justice League travel several thousand years into the past, the human members get sick for a while. Batman is sick the longest because he is the most 'normal'. Green Lantern has some protection, but he still gets sick. The Flash recovers the fastest because of his superhumanly fast metabolism, but he wouldn't recommend recovering that way.
  • Star Trek: Early Voyages: In "Now and Then, Part Three", Dr. Gabrielle Carlotti's examination of Mia Colt determines that her temporal integrity is breaking down. Saavik speculates that the timeline is rejecting her as she is alien to it. If she is not returned to her proper time and place, she will die within four days.
  • Transformers: More than Meets the Eye: Anode was told that she was suffering from timesickness after being awoken from her sleeper pod. Feeling moody, she instead went off to hang out with her friend Lug. When Lug disappeared on her, Anode went looking for her, only to discover that nobody knew of an Autobot named Lug- she'd been a timesickness-induced hallucination the whole time. The real Lug was dead, but thanks to her spark being preserved, Anode was able to bring her back by implanting it into a protoform.

    Fan Works 

    Film — Live-Action 
  • 12 Monkeys: The process of time travel seems to cause psychological harm. This is explained early, as Cole relays rumors that the other inmates who Got Volunteered for the trip wound up in the psych ward.
    • The scientists responsible for the project tell Cole that he possesses a mental resilience that makes him a good candidate for time travel: an ability to remember facts and details. He is not unscathed though, as he can Go Among Mad People and fit in perfectly.
    • Dr. Railly's research draws attention to the phenomenon of Doomsayer prophets: strange people spouting half-coherent Cassandra Truth about an incoming plague and the end of the world. It is suggested (but not confirmed) that every such Mad Oracle in history is like Cole: flung into the past, driven mad, and doomed to babble about a half-remembered reckoning.
  • In Happy Accidents, Sam suffers from R.T.D.S. "Residual Temporal Drag Syndrome".
  • In Paradox (2016), the prototype time machine causes disorientation, nosebleeds and a persistent feeling of being unwell. Its chief architect actually knows it causes brain damage, but he considers his companions expendable for the cause.
  • Predestination: People unused to time jumping feel ill, and John has to be hospitalised when the Bartender takes him on a particularly long jump to the future. Temporal agents are warned that making too many jumps can lead to psychosis. When the Bartender finally catches the Fizzle Bomber, he's revealed to be an insane future version of himself who claims to be working for The Needs of the Many, but the audience is left to wonder if that's true or just his delusion.
  • Occurs in Primer:
    • The time machine works by enclosing an area — usually a coffin-sized box — in a field for a certain amount of time, causing that area to Time Loop. Trying to walk in or out while the field is still on tends to mess up your anatomy, and you can't exactly wait until the field is completely off; all you can do is wait until the field has almost died and then get in. This leads to problems the more times the characters try it: one abruptly starts bleeding from the ears, and their once-normal handwriting devolves into The Illegible.
    • Since this is essentially taking The Slow Path in the other direction, failing to pack enough air, food, and water is dangerous as well.
    • It's possible that there are negative effects when two time travelers get close to each other, too.
  • In The Terminator, Kyle Reese is exhausted and disoriented after his time jump. The Terminator is a machine, so it doesn't suffer the same problems.
  • Time Freak: A mild case, as apparently going back in time causes some sort of sinus headache. After Stillman and Evan travel back in time two minutes via Stillman's Time Machine, Stillman tells Evan to hold the bridge off his nose.
  • The Tomorrow Man involves a blue-collar worker from the 1970s who accidentally gets jumped into the 1990s. First time through, his stomach has an unpleasant reaction.

  • Xeelee Sequence: The wormholes of Michael Poole’s time tended to have this effect on any sapient beings traveling through them. Doesn’t seem to be an issue with the Faster-Than-Light Travel of the Third Expansion, however.
  • In Michael Moorcock's Behold The Man, the time traveler has a pretty rough voyage and emerges nauseous. That's nothing to what's about to happen to him, though.
  • Hellrides in The Chronicles of Amber series are massively debilitating, involving the equivalents of jet lag and motion sickness as well as exhaustion. They're more dimensional travel than strictly time travel, but the concept is the same. One can also take a safe, comfortable trip called the "royal road". Hope you don't have anywhere you have to be at any particular time.
  • Dragonriders of Pern: Jumping between times makes you feel "not entirely whole," as F'nor puts it. The effects get worse the farther you travel from your "home" time, and can result in serious mental problems. Returning to your home time makes the effects go away, mostly. This is also the primary way that the worst of all time-travel paradoxes — meeting yourself — is prevented: if you get too close to a you from another time, you get very ill very fast, and usually pass out.
  • In The Future Of Another Timeline by Annaleen Newitz, time travel that alters the timeline causes severe illness in time travelers who return to their home times. The only cure is exile to a very distant time, either past or future.
  • In the Haruhi Suzumiya novels, people always keep their eyes closed when traveling through time. Open your eyes, and you risk seeing something so horrible that you'll end up puking for weeks. Kyon experiences this every time he (consciously) time travels with Asahina, one incident being seen when they go off to help Haruhi write a message to some random aliens, turning out to start off the whole premise of the story. He talks about the world turning around and wanting to puke.
  • In the Outlander series, time travel is potentially fatal — and the risk is cumulative, so that each trip is more dangerous than the last. None of the characters have made more than three time-jumps so far. Carrying large precious stones makes it safer and less unpleasant, to some extent, but the gems are consumed during the trip. (The ability to time-travel at all is also a trait only some people have, and is apparently genetically transmitted.)
  • The Stainless Steel Rat: This is an element of time travel in series.
  • In To Say Nothing of the Dog, characters routinely suffer from what is referred to as "time-lag", the effects of which usually last for several days, and consists of physical and mental disorientation; much like a more potent form of jet-lag or a hang-over. This is nicely portrayed when a nurse gives the protagonist a postcard of Oxford. When he rhapsodises over the dreaming spires she diagnoses serious time-lag. Also it allows the characters to carry the idiot ball.
  • This Used To Be About Dungeons: Chrononauts have a limited number of times they can reset each day, and on the final reset, if they go that far, they'll be very unwell. The party encounters Lola apparently suffering from reset sickness, but as she's a highly practised liar and manipulator, no one knows if it's genuine.
  • In Timeline, some characters suffer "transcription errors", which accumulate with multiple travels, causing insanity and death.

    Live-Action TV 
  • In 7 Days (1998), Frank Parker is the only living chrononaut; his survival is attributed to his unusually high tolerance for pain.
  • Dark (2017): Adam is Covered with Scars as a result of frequent trips across time. Other characters travel through time with no injury, but they seem to be using safer ways. Adam's only method is a time machine that he spends years desperately trying to repair without fully understanding how it works. His flawed attempts leave a mark, but he keeps trying.
  • Doctor Who: Time travel without a capsule (such as a TARDIS or other time ship), is possible but not recommended due to the temporal sickness it causes. The effects are not explicitly stated, but appear to be similar to being put through a huge tumble dryer.
    • In the episode "The Talons of Weng-Chiang", Magnus Greel's use of the time-cabinet to travel to the 19th century caused him to develop mutations (and his face to [[Squick melt]]), that needed him to drain the life out of women to stay alive.
    • When Rose encouraged the Ninth Doctor to allow Adam to travel with them, he got sick. Probably used as a device to highlight how useless he was in comparison with Rose.
    [Adam faints]
    The Doctor: He's your boyfriend!
    Rose: Not any more!
    • Jack managed to travel to the end of the universe while outside the TARDIS... but it killed him. (He got better, though.)
    • The novel "Only Human" claims that using an unshielded Time Machine can result in the person being able to make only one trip. While the person feels no ill effects from that one trip, a second trip results in painful disintegration. This applies even if the second trip is in a "proper" time ship like the TARDIS. This is why the Neanderthal from the novel ends up staying in the 21st century. Of course, the reason the other time machine is unshielded is because it's steam-powered.
    • Averted with the vortex manipulator (a gauntlet-sized device). For all its flaws (which the Doctor complains about whenever they use it), it is used by multiple people throughout the series with no ill-effects, despite not appearing to have any protective features, being likened to a "space hopper" compared to the "sports car" that is the Doctor's TARDIS.
  • In Goodnight Sweetheart, the only complaint Gary Sparrow has is wanting to know why time travel gives him gas?!
  • Legends of Tomorrow depicts time travel as a very stressful experience with several possible side-effects depending upon the person and length of the jump. These include nausea, vertigo, temporary blindness, vomiting, aphasia...
    Snart: Fine feel I.
  • In seasons 4 and 5 of Lost, characters who travel in time (whether physically or mentally) suffer nosebleeds, lose their memories, and die of brain aneurysms.
  • The Outer Limits (1995):
    • In "A Stitch in Time", it is caused not by the act of time travel itself but by the alteration of history. Whenever an alternate timeline is created, the time traveler remembers both the previous timeline and the new one. Travelling through time and killing 20 future serial killers, creating an alternate timeline on each occasion, takes a serious toll on Dr. Theresa Givens' health and she has a cerebral hemorrhage. Although it is not fatal, she realizes that she does not have long left.
    • In "Breaking Point", Andrew McLaren travels two days forward in time and back again. He begins to experience nosebleeds and severe jolts of pain and his behavior becomes highly erratic.
  • In Sisyphus: The Myth, time-travelers are 'unstable' when they first arrive in the past for a few days/weeks. In some cases, they never stabilize and might phase out of existence completely. Moreover, there is a drug that can amplify the effects of this instability to torture and/or kill time-travelers.
  • Star Trek:
    • In season 3 of Star Trek: Discovery, the only one to experience negative side effects after the ship's jump 930 years into the future is Georgiou. When Culber consults Kovich, the strange bespectacled guy at Starfleet Headquarters, he explains that it's a result of time travel coupled with dimensional travel. Since Georgiou is originally from the Mirror Universe, which has diverged from the Prime universe in the intervening centuries, Georgiou's atoms keep alternatively pulling her back in time and across dimensions. Kovich demonstrates the hologram of another such victim, who crossed over from the Kelvin timeline as well as the past, eventually succumbing to the same consequences.
    • In the Star Trek: The Next Generation episode "Timescape", improper protection when crossing time continuums can cause a condition known as "temporal narcosis", which causes the sufferer to alternate between hysteria and panic until they are returned to their original time continuum.
    • In the Star Trek: The Original Series episode "All Our Yesterdays", inhabitants of a planet are sent back to their past to escape their star going nova. Kirk, Spock and Bones travel without being given the necessary treatment, and will die if they don't get back to the present within a few hours. On the other hand, anyone who has been given the treatment to travel to the past cannot return to their own time without instantly dying. For those who went through to escape the supernova, this is a moot point anyway, but at an unspecified point in the planet's past, it was used in other ways, including by a dictator to send enemies into permanent and inescapable exile.
    • Star Trek: Voyager:
      • In an interesting version in the episode "Blink of an Eye", there is a planet Voyager is orbiting that rotates approximately 83,000 times faster than Earth. When two astronauts from the planet visit Voyager, they are severely sickened by the differential between the passage of time. One doesn't make it.
      • In the episode "Relativity", repeated use of time travel causes the user to become progressively ill with a condition known as "temporal psychosis", which can become fatal under some circumstances. One version of Seven is killed this way, forcing the agents to recruit a past!Seven to fill the gap.
  • Intriguingly, Terminator: The Sarah Connor Chronicles has characters exhibit virtually the same ill effects post time travel as in To Say Nothing of the Dog as cited above. John Connor even goes so far as to start referring to it by the same term, "time-lag". Makes you wonder...
  • Time Trax: Darien Lambert can't return to the year 2193 until he finds and sends back all of the fugitive criminals from his time. This is because time travel requires the traveler to be injected with a drug called TXP, which is usually fatal if administered more than twice (although, one person is confirmed to having survived a third dose, although he is disfigured by the attempt). Lambert was dosed with it when he was sent to 1993; returning to 2193 will require a second dose, after which he can never travel through time again. In one episode, under the influence of a Mad Scientist's device, he admits that he occasionally thinks to just forget it all and go back home. SELMA responds that no one would blame him if he did. After all, they can always send someone else in his place.
  • The Twilight Zone (1985): In "One Life, Furnished in Early Poverty", Gus Rosenthal begins feeling weak soon after he is transported back in time to the 1940s. After several days, he realizes that he has to return to his own time or he will die.

    Tabletop Games 
  • Timesickness (a.k.a. "The Crosstime Cookie Toss") is a common disadvantage in GURPS Time Travel.

    Video Games 
  • In Achron, units glow softly right after you chronoport them. They're perfectly functional, with the one exception being that they cannot chronoport again until the effect wears off. The effect has thus earned the nickname "rechronoport delay".
  • This can be a side effect of the "tears" in BioShock Infinite. The severity of the sickness depends on how well people can cope with it, and people who died in other timelines have it much worse.
  • The Chrono Legionnaire unit in Command & Conquer: Red Alert 2 is able to teleport anywhere on the map using the Time Machine technology invented by Albert Einstein (i.e., it's still, technically Time Travel, minus the "time" part). The farther the jump, the longer the unit has to spend "shifted". While in this state, the unit can't do anything but can be attacked and destroyed. Strangely, the cut scenes showing people using the Chronosphere for actual time travel has no ill effects (beyond the fact that touching someone in the past results in that person ceasing to exist).
  • Resetting your turn in Into the Breach may cause one of your pilots to complain about the headaches travelling in time gives them.
  • Porky in Mother 3 combines extremely poor physical health with non-stop coughing with Age Without Youth (sort of) and Immortality Immorality as the result of excessive time traveling.
  • In TimeShift, it is suggested that time travel may cause disorientation and even memory lost. The Beta suit does counteract some problems, but judging by the intro video motion sickness may be a concern. The player character also passes out shortly after a time jump.

  • Both averted and played straight in Autumn Bay. When Andrew and Marie-Ange are sent to the Bad Future by Nesariel, they are just fine. In fact, they take the whole thing in stride. On the other hand, after being sent back to their home time by Dr. Deacon, they are quite stunned upon their return.
  • Both played straight and averted in Cwen's Quest. Travelling forward in time is painful and draining, but when you go backwards it actually has the opposite effect and temporarily gives you super powers.
  • Love Unlimited (2022): The Ms. Marvel & Red Dagger arc has a variant. Arc Villain Curio is physically changed and heavily scarred by his time travel, but it also seems to have granted his electrical powers.