Placeholder Image

字幕表 動画を再生する

審査済み この字幕は審査済みです
  • Saturday, 12 p.m., the light burns, your head throbs, and you have no recollection of how you got back home.

    土曜の午後 12 時。眩し過ぎる光。ズキズキ痛む頭。どうやって帰宅したのか記憶はゼロ。

  • Don't worry, you're not alone.


  • More than half of college students experience blackouts, according to several studies.


  • And let's be clear, blacking out doesn't mean passing out.


  • You were probably awake and aware the entire night.


  • So then, where did all those memories go?


  • Let's rewind to Friday night.


  • Normally, whenever you have an experience, like a conversation, a part of your brain called the prefrontal cortex stores that information in short-term memory.


  • Then, another part of your brain called the hippocampus weaves those experiences together, so they can be stored away as long-term memories.


  • So the next day, you remember the party as a whole, instead of the smell of sweat, house music, Jen was there.


  • But here's the key part.


  • Storing these episodes in long-term memory requires special neurotransmitters.


  • But your liquor shots prevent the neurotransmitters from working properly.


  • So instead of remembering the party, all you have is an incomplete, or even empty file.


  • And the amount of alcohol in your system at the time influences how much you remember.


  • Let's say you're a 73-kilogram adult man, and you've done eight shots in one hour.

    例えば、73㎏ の成人男性が、1 時間のうちに強いお酒をショットグラスで 8 杯飲んだとします。

  • Your blood alcohol content is probably around 0.2% by this point, more than twice the legal limit for driving a car.

    この時点で血中アルコール濃度は約 0.2% ほどとなるでしょう。これは、(アメリカで)法的に運転可能とされている濃度の 2 倍以上。

  • And your brain may still be able to store some memories, so you end up with islands of memories separated by missing sections.


  • That's called a fragmentary blackout, aka a grayout or brownout.


  • But if you keep pounding those shots, it gets worse.


  • Within the next half hour, you pound back another four shots.

    その後 30 分以内に、強いお酒をショットグラスでさらに 4 杯飲みます。

  • Now your blood alcohol content hits around 0.3%, and your hippocampus goes dark, and full amnesia sets in.

    すると血中アルコール濃度は 0.3% ほどにまで達し、海馬はショート。完全に記憶喪失状態に。

  • This is called an en bloc blackout, and once you wake up, that entire night could be blank.


  • Push your BAC much higher than that, and you might die.


  • And yet your friends might not even realize you're in the middle of a blackout, since the alcohol didn't delete your long-term memories already safe in storage before the night began.


  • So you can still carry on conversations and behave more or less like a typical person, to an extent.


  • Blackouts aside, alcohol can still interfere with other regions of your brain, including those responsible for reasoning and decision-making.


  • So during blackouts, people have crashed cars, gotten into fights, and committed or been the victims of sexual assault.


  • They might just not remember it.


  • That being said, not everyone gets blackouts.


  • Your sex, body weight and family history all play a role.


  • So that could explain why your friends recall the entire night, despite downing just as much tequila.


  • But it won't save them from a wicked hangover the next morning.


Saturday, 12 p.m., the light burns, your head throbs, and you have no recollection of how you got back home.

土曜の午後 12 時。眩し過ぎる光。ズキズキ痛む頭。どうやって帰宅したのか記憶はゼロ。

審査済み この字幕は審査済みです

動画の操作 ここで「動画」の調整と「字幕」の表示を設定することができます

B1 中級 日本語 記憶 アルコール 断片 濃度 海馬 状態

意識がなくなるまで飲むとこうなっている! (What Happens To Your Brain When You Get Blackout Drunk | The Human Body)

  • 14290 574
    Fibby に公開 2019 年 10 月 29 日