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  • The brain is amazing and complex but our lack of understanding has led to a great variety of myths throughout the years, like "bigger is better".


  • While this may be true for some other organs, you only need to look at a sperm whale's brain, which is nearly 6 times larger than a human's, to see this myth fall apart.

    雖然某些器官的確是越大越好,但你只要看看抹香鯨那比人類大上 6 倍的腦袋,這迷思便不攻自破。

  • Yes, they're certainly intelligent animals, but their cognitive skills pale in comparison to our own.


  • Had a fun night out? Don't worry, alcohol doesn't actually kill your brain cells.


  • Although it does cause damage and creates problems conveying messages between neurons, the damage is mostly reversible.


  • Similarly, drugs don't actually create holes in your brain.


  • Though some can permanently change your brains functionality and structure, the only thing that can put a hole in your brain is physical trauma.


  • Good thing you have 100 billion brain cells...or not.

    好消息是你擁有 1 千億個腦細胞...吧。

  • Surprisingly, it wasn't until 2009 that scientists discovered the true number to be closer to 86 billion.

    令人驚訝的是,直到 2009 年科學家才發現真正的數量更接近 860 億。

  • Sure it may seem like a small difference, but those 14 billion neurons are equal to the size of an entire baboon brain.

    這數字看起來只有些微的差異,但那 140 億個神經元相當於狒狒的整個腦袋。

  • To further put those numbers in perspective, consider that 1 million seconds is 12 days, while 1 billion seconds is 31 years, so that 14 billion neuron difference may not be so small after all.

    更準確一點來說,試想 1 百萬秒相當於 12 天,10 億秒就是 31 年,以此相比,相差 140 億個神經元就不是小差異了。

  • Regardless, we can't use them all, right?


  • Most movies and sci-fi books have us believe that humans can only use around 10% of our brain which is absolute nonsense.

    大部分的電影和科幻小說都告訴我們,人類只能使用大腦的 10 %左右...這簡直是無稽之談。

  • Thanks to modern brain scanning technology, we know that we use the whole thing...all the time!


  • Not necessarily all at once; when you're walking, for instance, the parts of the brain associated with movement are more active than other areas.


  • However, there is no part of the brain that simply doesn't do anything.


  • It represents 3% of the bodies weight and uses 20% of its energy.

    大腦佔了身體總重的 3 %,消耗了 20 %的身體能量。

  • That's a busy brain!


  • But we generally use one side more than the other, right?


  • Nope! while you may have been convinced that if you're more logical or analytical, you're more "left brained", and if you're more creative or intuitive you're "right brained", it's simply not true.


  • While different sides of the brain are indeed used for specific functions, for example, language uses the left hemisphere while the right hemisphere helps to read emotion, studies on thousands of individuals have found no evidence of a left or right dominance in individuals.


  • In other words, you use both sides equally.


  • And you don't actually have 5 senses like you were always told, in fact, you have a lot more, like nociception which is the sense of pain, or proprioception, the sense of how our bodies are positioned.


  • Not to mention sense of balance, temperature and passing of time.


  • Scientists at GE's Global Research Centers are collaborating with top researchers and institutions to uncover new insights about the brain's functionality.

    GE 全球研究中心的科學家正與頂尖研究人員和機構合作,嘗試揭露更多有關大腦功能的真相。

  • If you're interested in debunking more myths or understanding more about the brain, you can follow their progress at GE Reports, as they work together to crack the brain's greatest mysteries.

    若你有興趣想破除更多迷思或深入了解大腦,你可以在他們合作解開大腦秘辛時,追蹤一下 GE 的研究進度。

  • Special thanks to GE for supporting this episode of AsapSCIENCE!

    特別感謝 GE 贊助本集的 AsapSCIENCE。

  • And subscribe for more weekly science videos!


The brain is amazing and complex but our lack of understanding has led to a great variety of myths throughout the years, like "bigger is better".


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