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  • Whether it's from an awful breakup or a traumatic life event, some memories can haunt us for our entire lives.


  • But, what if there was a way that you could completely forget these all together?


  • Can science erase your bad memories?


  • Memory is an incredibly complex process;


  • while scientists used to believe it was like a filing cabinet and particular memories were stored in different sections of the brain,


  • we now know this is incorrect.


  • In fact, each memory is a brain wide process.


  • If you end up remembering this video, it's because the cells in your brain are being triggered and fired.


  • building new connections and links and literally rewiring the circuitry of your mind.


  • And this change is partially facilitated by proteins in the brain.


  • So what if the proteins aren't available?


  • Simply put memories can't be made.


  • Seriously scientists have tested this by giving animals drugs that prevent these proteins from forming.


  • As a result the animals have no recollection of the things that took place shortly after the drug was taken.


  • From this research, scientists actually found a way to target long term memories for deletion.


  • You see, every single time you remember a memory, your brain is once again firing and rewiring.


  • In fact, each time you reflect on a memory, you are literally physically changing that memory in your mind.


  • And each time that memory is altered a little, reflecting your current thoughts.

    每回想一次 記憶就改變一點,並反映了你現在的想法

  • Remembering is an act of creation and imagining, meaning the more you reflect on old memories, the less accurate they become.


  • And scientists have actually quantified this change.


  • After 9/11, hundreds of people were asked about their memories of the dreadful day.

    911 事件過後,上百位人們被問到關於當天的記憶

  • A year later, 37% of the details had changed.

    一年後,人們的記憶已經改變了 37% 的細節

  • By 2004, nearly 50% of the details had changed or gone missing.

    到了 2004 年,接近 50% 的記憶已經消失或改變

  • And because memories are formed and rebuilt every time,


  • if you administer the protein inhibiting drug while recalling a memory, the memory can be effectively removed.


  • To test this, scientists took lab rats and played a sound for them, shortly followed by an electric shock.

    為了驗證這項理論,科學家撥放某個聲音給老鼠聽 接著電擊

  • After doing this multiple times, the rats quickly learned that if they heard the sound, a shock was soon to follow.


  • As a result, they would stress up and freeze every time they heard it.

    因此 老鼠聽到聲音 他們會感到害怕、有壓力

  • Months later, these rats would still respond to the noise;


  • however, if they administered the drug first, the rats would lose the memory of the sound, and simply continue on.


  • They had lost their memory of that specific noise.


  • To be sure the drug wasn't just causing large scale brain damage, scientists repeated these experiments with multiple tones this time.


  • Both sounds would warn for a shock, and eventually the mice would fear both.


  • But if they administered the drug and played only one of the sounds,


  • the mice would only forget that one tone, while still remaining fearful of the other.


  • Over time scientists have discovered specific drugs to target particular proteins across different parts of the brain.


  • So, if you experience a terrible emotion with a memory,


  • then targeting a protein in the emotional regions of the brain can help to remove that connection alone.


  • Which could be an amazing tool, especially for patients suffering from something like Post Traumatic Stress Disorder.


  • But while these drugs are in the very early stages, the question remains;


  • if you were given a "forgetting pill" would you be willing to take it?


  • Special thanks to for supporting this episode and giving you a free audio book of your choice at

    特別感謝 支持著這些影片,並給你免費的有聲書

  • Audible is the leading provider of audio books with over 150,000 downloadable titles across all types of literature.

    Audible是個有聲書領導品牌,有超過 150,000 次、包含各式作品的下載量

  • We recommend the bookUndeniable: Evolution and the science of creationby the one and only Bill Nye the Science Guy who we did a video with on this channel a while back!

    我們推薦“Undeniable: Evolution and the science of creation”這本書,作者 Bill Nye 支持著我們的影片

  • You can download this audio book or another of your choice, for free, at

    你可以下載這本有聲書,你也可以在 選擇其他的免費有聲書

  • And with a subscription you get one free book a month!


  • Special thanks Audible for making these videos possible! And subscribe for more weekly science videos!

    特別感謝 Audible 讓這些影片成真!訂閱來觀看更多每周科學影片!

Whether it's from an awful breakup or a traumatic life event, some memories can haunt us for our entire lives.


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好想忘掉這一切!我們有辦法除去記憶嗎?(Can You Erase Bad Memories?)

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    朱朱 發佈於 2015 年 02 月 25 日