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The Radioactive “Miracle Water” That Killed Its Believers

If you lived in the 1920s, you might have found a pamphlet advertising “the greatest therapeutic force known to mankind.” Radithor was a tiny bottle of clear, colorless water that claimed to cure acne, anemia, heart disease, poison ivy, impotence, asthma, and any other malady you could imagine. There was only one side effect: DEATH.…

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If you lived in the 1920s, you might have found a pamphlet advertising “the greatest therapeutic force known to mankind.” Radithor was a tiny bottle of clear, colorless water that claimed to cure acne, anemia, heart disease, poison ivy, impotence, asthma, and any other malady you could imagine.

There was only one side effect: DEATH.

So, why did 1920s Americans go gaga for radioactive water? Well, it’s complicated.

Host: Annie Colbert
Reported by: April White
Editing and graphics by Avital Oehler
Written and produced by Matt Silverman

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20 Comments

20 Comments

  1. @Element_Finland

    March 27, 2026 at 4:34 pm

    Our understanding sure has increased a lot in a 100 years. Too bad we still let corporations exploit the masses and the planet. ^^

    • @warrange

      March 29, 2026 at 2:43 am

      No, it’s just people love to buy themselves a Darvin Award, and smarter people love to sell it to them.

  2. @EyesOfByes

    March 27, 2026 at 5:06 pm

    AI = radium

    • @popularscience

      March 28, 2026 at 11:05 am

      (,,•o•,,)

  3. @MisterMakerNL

    March 27, 2026 at 5:26 pm

    But did you actually glow in the dark when you drank it? Like Burns.

    • @popularscience

      March 28, 2026 at 11:04 am

      There’s only one way to find out …

  4. @ktmbro37

    March 27, 2026 at 5:58 pm

    No they didn’t it works amazing, I used to have no arms then I started drinking my own radioactive water homebrew 10 years ago and now I have three

    • @popularscience

      March 28, 2026 at 11:04 am

      ummmmmmm.

  5. @curious5661

    March 27, 2026 at 6:18 pm

    For a video explaining the dangers of radium, it fails to explain why radium is so deadly beyond simply being radioactive. The real danger is that radium behaves very similarly to calcium, so our bodies treat it the same way. That means it gets absorbed into your bones, where it can cause damage over a long period of time. Once it’s in, it’s impossible to remove.

  6. @Absbor

    March 27, 2026 at 6:39 pm

    well, that’s one effective title. “1920s Americans Thought Radioactive Water Could Cure Everything. They Were D34d Wrong.”
    i got hooked in.

  7. @Nmethyltransferase

    March 27, 2026 at 7:12 pm

    Popular Science? Ounces? That’s diabolical!

  8. @empmachine

    March 28, 2026 at 10:10 am

    Really cool stuff !! It’s crazy how little we used to understand radiation (but still were totally using it like we did).
    Oh.. and I’m digging the carefully-maintained folds in your totally worn-all-day tshirt
    (that wasn’t hastily put on just before recording.. hheheheheh) 😛😛

    • @popularscience

      March 28, 2026 at 11:04 am

      Our budget doesn’t cover the cost of an iron.

  9. @comasmusica7548

    March 28, 2026 at 12:26 pm

    Where’s Kevin.

  10. @SkyRCFanatic

    March 28, 2026 at 12:28 pm

    They knew it all along newbie… is part of the population control agenda…

  11. @rolfknappmann

    March 29, 2026 at 6:52 pm

    People died of radium for the sake of rich people getting more money, then asbestos for the sake of rich people getting more money and now we’re all getting microplastic in our brains for the sake of rich people making more money as well as the sh*t that makes pans non-sticky…

  12. @FredScuttle456

    March 31, 2026 at 8:50 am

    I saw a TV documentary about this some years ago.
    The presenter visited the grave of a person who’d died from radium poisoning, working in a factory where this stuff was packaged.
    The presenter had a Geiger counter. It went clicking-crazy.

  13. @uhadme

    April 2, 2026 at 12:09 pm

    Paid outrage over free energy? Glad they took it from you, radiation from the sun (uranium) is so dangerous. Might cause a severe tan, if you mishandle it.
    How about making a video about using barium as a preservative in baby formula? Probably why infant mortality rates were insane in 1800s.

  14. @mikecrisafulli8970

    April 2, 2026 at 3:57 pm

    There were also dial painters in Ottawa, IL who succumbed to the effects of Radium poisoning.

  15. @tsartomato

    April 5, 2026 at 5:26 am

    step up step up step up step up for the miracle cure whatever’s the illness the remedy’s sure

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