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Everyone has fears. It’s just that what keeps one person awake at night might not even cross someone else’s mind. So when a post on Reddit asked users to share what they’re most afraid of, the replies poured in by the thousands.

From the depths of the ocean to incurable illnesses, advanced technology, and beyond, the discussion reminds us that, for all our progress, we have yet to become the masters of our fate, not to mention the universe.

#1

Silhouette of elderly man sitting with cane in dimly lit room Alzheimer's. Everyone & everything you have ever loved being erased slowly by your own self. And the ones that you loved still love you, but you cannot perceive that love. A nightmare that does not even have the decency to be a fast one.

DaniJHollis , cottonbro studio/Pexels Report

NightOwlPanda
Community Member
8 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

Dementia really puts the lie to "intelligent design."

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    #2

    43 Terrifying Things People Just Cannot Come To Terms With Psychopaths with money, especially male, especially in politics.

    narcomance , cottonbro studio/Pexels Report

    However, when scrolling through a list like this one, we need to remember that our anxieties very rarely come true.

    Researchers at Penn State University had people write down their specific worries for ten days whenever they noticed they were concerned. Four times a day, they were prompted by text message to record any worries from the past two hours to ensure that as many as possible were captured.

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    The participants then reviewed their list of worries every evening over the next 30 days to see if any of them came true. The researchers focused on worries that could be tested in the 30-day period; for example, “I will fail my math exam tomorrow” would be testable, whereas “I’ll develop cancer at some point in my lifetime” would not. The average person reported three to four testable worries per day.

    #3

    Flooded neighborhood showing water damage and debris near brick houses Climate change. It’s coming. We can’t stop it, anymore. We were too stupid to even try.

    bort13 , Juan Moccagatta/Pexels Report

    #4

    43 Terrifying Things People Just Cannot Come To Terms With At this point, its man. Man is the scariest thing to exist. Thats where we are.

    OwlPsychological9350 , Istiaque Hossain/Pexels Report

    Lost Panda
    Community Member
    10 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Man has always been one of the most unpredictable and scary things that cursed the cosmos

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    #5

    ChatGPT interface on smartphone showing AI chat examples and capabilities Right now? AI. It’s freaky af how real that can look.

    Local-Contact4639 , Airam Dato-on/Pexels Report

    Sea Bunny
    Community Member
    7 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I am VERY against generative AI. There were never enough regulations when generative AI began getting a lot of attention.

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    According to the study's results, a whopping 91 percent of worries were false alarms.

    “These findings underscore ‘worry's deceit,’” psychologist Dr. Seth J. Gillihan commented on the data.

    “‘Deceit’ is a good word to describe the nature of worry, implicitly demanding that we pay attention to it because the threat is real. In reality, it’s nearly always a false alarm.”

    #6

    Brain MRI scan image showing detailed neurological structure Prions. Misfolded proteins that can randomly occur, turning your brain to mush.

    Ambitious_Traffic530 , MART PRODUCTION/Pexels Report

    Ava Shores
    Community Member
    8 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    A dear friend died of this. Horrible draining life-erasing nightmare. It haunts me 30+ years later, watching my friend fade away into nothing.

    #7

    Close-up of a snarling animal with sharp teeth and open mouth In my opinion, Rabies is the scariest disease.

    The post by u/Blargle33 In r/copypasta really makes you realize how scary it is

    "
    Rabies is scary.

    Rabies. It's exceptionally common, but people just don't run into the animals that carry it often. Skunks especially, and bats.

    Let me paint you a picture.

    You go camping, and at midday you decide to take a nap in a nice little hammock. While sleeping, a tiny brown bat, in the "rage" stages of infection is fidgeting in broad daylight, uncomfortable, and thirsty (due to the hydrophobia) and you snort, startling him. He goes into attack mode.

    Except you're asleep, and he's a little brown bat, so weighs around 6 grams. You don't even feel him land on your bare knee, and he starts to bite. His teeth are tiny. Hardly enough to even break the skin, but he does manage to give you the equivalent of a tiny scrape that goes completely unnoticed.

    Rabies does not travel in your blood. In fact, a blood test won't even tell you if you've got it. (Antibody tests may be done, but are useless if you've ever been vaccinated.)

    You wake up, none the wiser. If you notice anything at the bite site at all, you assume you just lightly scraped it on something.

    The rabies will multiply along your nervous system, doing virtually no damage, and completely undetectable. You literally have NO symptoms.

    It may be four days, it may be a year, but the camping trip is most likely long forgotten. Then one day your back starts to ache... Or maybe you get a slight headache?

    At this point, you're already gone. There is no cure.

    (The sole caveat to this is the Milwaukee Protocol, which can't save most patients anyway, and the survivors are left mentally disabled, and is seldom done).

    There's no treatment. It has a 100% mortalityl rate.

    Absorb that. Not a single other virus on the planet has a 100% mortality rate. Only rabies. And once you're symptomatic, it's over. You're gone.

    So what does that look like?

    Your headache turns into a fever, and a general feeling of being unwell. You're fidgety. Uncomfortable. And scared. As the virus that has taken its time getting into your brain finds a vast network of nerve endings, it begins to rapidly reproduce, starting at the base of your brain... Where your "pons" is located. This is the part of the brain that controls communication between the rest of the brain and body, as well as sleep cycles.

    Next you become anxious. You still think you have only a mild fever, but suddenly you find yourself becoming scared, even horrified, and it doesn't occur to you that you don't know why. This is because the rabies is chewing up your amygdala.

    As your cerebellum becomes hot with the virus, you begin to lose muscle coordination, and balance. You think maybe it's a good idea to go to the doctor now, but assuming a doctor is smart enough to even run the tests necessary in the few days you have left on the planet, odds are they'll only be able to tell your loved ones what you died of later.

    You're twitchy, shaking, and scared. You have the normal fear of not knowing what's going on, but with the virus really damaging the amygdala this is amplified a hundred fold. It's around this time the hydrophobia starts.

    You're horribly thirsty, you just want water. But you can't drink. Every time you do, your throat clamps shut and you vomit. This has become a legitimate, active fear of water. You're thirsty, but looking at a glass of water begins to make you gag, and shy back in fear. The contradiction is hard for your hot brain to see at this point. By now, the doctors will have to put you on IVs to keep you hydrated, but even that's futile. You were a goner the second you had a headache.

    You begin hearing things, or not hearing at all as your thalamus goes. You taste sounds, you see smells, everything starts feeling like the most horrifying acid trip anyone has ever been on. With your hippocampus long under attack, you're having trouble remembering things, especially family.

    You're alone, hallucinating, thirsty, confused, and absolutely, undeniably terrified. Everything scares the literal you at this point. These strange people in lab coats. These strange people standing around your bed crying, who keep trying to get you "drink something" and crying. And it's only been about a week since that little headache that you've completely forgotten. Time means nothing to you anymore. Funny enough, you now know how the bat felt when he bit you.

    Eventually, you slip into the "dumb rabies" phase. Your brain has started the process of shutting down. Too much of it has been turned to liquid virus. Your face droops. You drool. You're all but unaware of what's around you. A sudden noise or light might startle you, but for the most part, it's all you can do to just stare at the ground. You haven't really slept for about 72 hours.

    And there's not one... thing... anyone can do for you.

    Then there's the question of what to do with your corpse. I mean, sure, burying it is the right thing to do. But the virus can survive in a corpse for years. You could wipe out every rabid animal on the planet today, and if two years from now, some moist, preserved, rotten hunk of used-to-be brain gets eaten by an animal, it starts all over.

    So yeah, rabies scares me. And it's EVERYWHERE. (Source: Spent a lot of time working with rabies. Would still get my vaccinations if I could afford them.)
    ".

    -Huskii , Rodrigo Hanna/Pexels Report

    Spencers slave no more
    Community Member
    8 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    It really isn't everywhere. There are so many countries that do not have rabies unless it's deliberately brought into them. Ebola and Hantavirus on the other hand? They're silent but deadly and easily transmitted.

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    #8

    Close-up of tick insect on green plant leaf macro shot Ticks - they are everywhere and can mess up your life in ways you would never imagine.

    Smooth-Shower290 , Erik Karits/Pexels Report

    #9

    Man inside submarine viewing panel in deep sea with control instruments Deep ocean pressure is the only thing that actually makes my skin crawl. The idea that something that massive and hostile is just sitting there in the dark is wild.

    lategoblin404 , Tamara Adeyemi/Pexels Report

    Ace
    Community Member
    Premium
    5 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Eh? What is this "massive and hostile" thing that's sitting there?

    Another important finding in the study was that individuals whose worries were less likely to come true were more likely to benefit from treatment for their worry and anxiety.

    Thus, keeping track of how one’s worries turn out seems to be an effective way to release compulsive worrying.

    The authors of the study propose that people who worry a lot “view worry as a valued means of coping.” They may see it as being useful for spotting and preventing true threats, or for avoiding being blindsided when bad things happen.

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    So, looking at the actual data about their worries likely changed their beliefs about its usefulness.

    Maybe sharing your fears online helps, too?

    #10

    Colorful hot spring with steam rising in natural terrifying landscape The Yellowstone Caldera. If it erupts it could be a major life threatening event all over the planet. When Mount Tambora erupted in 1815 there was so much ash emitted the following year was known as the year without a summer, with massive crop failures and food shortages. An eruption of the Yellowstone Caldera would be exponentially larger.

    Zoraji , Pixabay/Pexels Report

    Spencers slave no more
    Community Member
    8 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Density wise, New Zealand has ~10x the US regarding earthquakes. We also have 8ish times caldera. Volcanic activity per population, New Zealand surpasses the US by a lot.

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    #11

    43 Terrifying Things People Just Cannot Come To Terms With Getting sentenced to life in prison for something you didn't do.

    Dontunderstandu , Maia Fotografia/Pexels Report

    JoNo
    Community Member
    5 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Being sentenced to capital punishment - and having it done - for something you didn't do would be worse.

    #12

    Close-up of red cap with political slogan making America great again As an American....Maga. Not so much the civilians because they've been manipulated into puppets without knowing what they're supporting. That is what's scary, how they somehow manipulated millions into being almost as in control as slaves, how they manipulate these people into violence (January 6th) THEN MANIPULATE THEM INTO THINKING THEY'RE THE HEROES! They've manipulated even members of the government to let Trump and the other leaders get away with anything (look at the billions of dollars in payouts Trump just paid out to himself from his own IRS and made himself immune from any persecution). I know I'm going to get some of these people in my replies which just helps proves my point.

    TheRealBaeleth , Polina Zimmerman/Pexels Report

    Robyn Hill
    Community Member
    10 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Madison and Hamilton actually spelled out how something like Trump could subvert our democracy and become a dictator. That’s the scariest thing I’ve read. And now we’re f*cking living it.

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    #13

    Nebula and starfield showcasing vast and eerie space phenomenon The lifecycle of stars.

    Deaths_Smile , Iceberg San/Pexels Report

    #14

    Sunlit sand dunes creating haunting shadows in desert terrain Eternity…Or the expected lifetime of the observable universe before all atoms, molecules and energy is completely exhausted and nothing is left besides complete darkness. Even black holes evaporate eventually (hawking radiation).

    Granted this is estimated to take at least 100 trillion years. These thoughts creep me out.

    SeahawksWin43-8 , Taryn Elliott/Pexels Report

    Robyn Hill
    Community Member
    10 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    I literally can’t wrap my mind around the idea that the universe could cease to exist. Because if it didn’t exist … then there would be no reality. My brain shuts down at that point.

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    #15

    Aerial view of tornado devastation with damaged homes and debris Scary is subjective, but survivors will tell you that there's nothing more scary than a tornado ripping your house and life apart.

    TunedAgent , K/Pexels Report

    Robyn Hill
    Community Member
    10 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Worse, being in the path of an unsurvivable tornado, and having no way out. Jarrell TX comes to mind, or Rolling Forks.

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    #16

    43 Terrifying Things People Just Cannot Come To Terms With Cancer. Can affect anyone (my mom, my 20 year old friend) - rich, poor, young, old, plans for the future - it does not care.

    incognito7182 , Dr. Cecil Fox (Photographer Report

    #17

    Woman holding her head in pain showing symptoms of a headache Aneurysms. You can just be having a totally normal day, feeling fine, and then suddenly with no warning you're gone. It can happen to anyone at any time. No thank you. .

    CaptainFartHole , Kindel Media/Pexels Report

    Giraffe Sitter
    Community Member
    8 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Truth be told, I’d rather go fast with no warning than be debilitated for years.

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    #18

    Scientists in protective gear at a nuclear disaster cleanup site Radiation. Besides it's essential medical advances (such as xrays and imaging), the horrors and realities of the chernobyl disaster, Fukushima, and the absolute nightmarish results of Hiroshima and Nagasaki, nothing holds a candle to levels of sheer horror, in my opinion.

    ModernAutomata Report

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    #19

    Dark murky ocean water hiding a shadowy sea creature The ocean. esp at night. it just a giant mouth that can swallow you whole.

    salty-snax , Kris Møklebust/Pexels Report

    Ace
    Community Member
    Premium
    5 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    The ocean at night is quite magical. Not another ship or land, not even a light in sight, nothing but stars, luminescent wave crests, occasional dolphins and whales...

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    #20

    Ebola Zaire.

    The little ebola virus gets into one of your cells. There, it replicates and replicates until that cell can't physically hold it anymore, and the cell ruptures, sending all those strands of the virus into *many* cells....

    ......where they replicate and replicate until all those cells burst open, sending ebola into exponentially more cells....

    Your body bursts from the inside out. Cell by cell. You "bleed out." From your mouth. Your nose. Your eyes.

    Mortality rate of 83% on average. Up to 90%.

    The thing that's saved the world until now is that it usually hits small villages that are far from others, and those who catch it feel so awful they don't leave to visit other villages.

    When it hits a big city?

    The world has a BIG problem.

    Flimsy_Fee8449 Report

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    #21

    The New Apostolic Reformation. The incredibly massive amount of Christians that want to build the literal Kingdom of Heaven in the United States.

    chillaxtion Report

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    #22

    Man awake in bed unable to sleep at night in dark bedroom Fatal familial insomnia.

    arnoldlopezqw: The absolute worst part is that sleeping pills do absolutely nothing to help.

    Because the disease physically destroys the thalamus, sleeping pills and sedatives will knock you unconscious, but your brain still won't actually go to sleep. You just end up chemically paralyzed and trapped in a waking nightmare while your body slowly shuts down from sleep deprivation.

    j_turn2000 , cottonbro studio/Pexels Report

    #23

    Realizing you’ve been overthinking a situation that never mattered.

    Jinxybug Report

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    #25

    Caves… getting trapped in a narrow cave terrifies me. People who go splunking are different. The story of that guy who got stuck upside down in a cave and passed away there is nightmare fuel.

    EstimateWhich8871 Report

    Ava Shores
    Community Member
    8 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Nutty Putty, a true horror if ever there was one. I try not to think about it but sometimes I do

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    #26

    The sun could just burp and vaporize us in an instant at any time.

    CrawlerCarlWeathers Report

    Rick Murray
    Community Member
    9 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Quasars and supernovae enter the chat...

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    #27

    That all these countries got nuclear weapons ready to use on eachother.

    YOURPANFLUTE Report

    #28

    Glioblastoma. My dad passed away from it last year and it’s hands down the most horrific thing I’ve ever experienced.

    Bouncyspy Report

    #29

    Black holes .

    ___--_-_----___--__- Report

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    #30

    Time scares me. Just always ticking away.

    Common-Accountant-57 Report

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    #31

    Vast starry sky and Milky Way galaxy in the universe night Honestly, i think for me the scariest thing to exist is probably the unknown. Like how we really dont know or understand the universe or even our own minds. It's not a specific thing, but more like the idea that there is so much happening to us or to our environment we can't see or fully explain.

    SpiceItSoftly , Alexandre P. Junior/Pexels Report

    Spencers slave no more
    Community Member
    7 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    The Milky Way, and other parts of "our" universe look spectacular on clear, dark sky nights. We're pretty lucky in the Southern Hemisphere because we have less human density.

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    #32

    The universe, all things listed under this post are byproducts of the universe - so existence itself is terrifying.

    yapootheflyingbeaver Report

    Rick Murray
    Community Member
    9 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    We're a bunch of atoms that form compounds that form proteins that form chains that are somehow "alive" and even, in our case, sentient enough to ask "how the hell does this even work?".

    #33

    Microplastics.

    Ok_Knee1216 Report

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    #34

    Viruses. They are technically not even alive, they are just "organic"(?) machines. Think about it for just a moment, they are not alive but makes copies of itself!

    Gravewarden92 Report

    Rick Murray
    Community Member
    9 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    They work by hijacking cells that are alive and rewiring them to produce copies of the virus. Clever. Scary, but clever.

    #35

    The size of the universe and what horrifying things could potentially exist and lay in waiting for us.

    Doggystyle_Rainbow Report

    #36

    Dark underground cave with water reflecting rocky walls in terrifying scene Being stuck in a cave with rising water and there is no way out and it fills completely and you shriek for a miracle with every fibre of your being but it fills anyway and you drown in panic.

    052-NVA , Pho Tomass/Pexels Report

    Spencers slave no more
    Community Member
    7 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    That's a choice though, especially if you know someone has di3d doing what you choose to do.

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    #37

    Broken Arrow. I don't know what's scarier, losing nuclear weapons, or that it happens so often there's actually a movie about it.

    ActualWhiterabbit Report

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    #38

    The moment you realize nobody is coming to save you, and it's completely up to you.

    showbizusa25 Report

    #39

    Close-up of bed bug on human skin, highlighting pest details Bed bugs are the scariest after living with them.

    tanyarastafari , CDC/ Harvard University Report

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    #40

    Racist vigilantism in the aftershock of a natural disaster.

    The combination of emboldened white supremacy, relaxed gun laws, effects of climate change, and depleted public services are all coming to a head.

    PaddyMac831 Report

    #41

    Vivid and recurring nightmares.

    LoveDistinct Report

    Gingersnap In Iowa
    Community Member
    11 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    The type of nightmare that you can't quite remember yet you have a feeling of dread for the rest of the day.😳

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    #42

    The deep forest at night.

    RefrigeratorSalt9797 Report

    #43

    *If* it is possible, false vacuum decay.

    Ja_Lonley Report

    Ace
    Community Member
    Premium
    4 hours ago Created by potrace 1.15, written by Peter Selinger 2001-2017

    Classic fear of the unknown, this person clearly has not a clue what the postulated theory really means (and TBH nor had I until this prompted me to read up on it, and now I just about have a vague, a very vague, clue) but somehow just imagines that it's obviously a_bad_thing so just adds it to their list of things to be scared of.

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