上級 111073 タグ追加 保存
From philosophers and historians, to poets and scientists alike,
love has captured our imagination and curiosity for centuries.
Many have experienced the rush of falling in love for the first time.
Or the deep feelings of love for your children, family and friends.
But what is love from a biological perspective?
No doubt it's intertwined with the evolutionary survival of our species.
After all, you come from an unbroken line of organisms reproducing from the very first microbe that split in two,
to your ancestors who have all successfully mated since the dawn of time.
Sadly, if you fail to have children, this perfect streak comes to a halt.
But while we're driven to reproduce, we're also driven to make sure our offspring survive.
Though we often associate love with the heart, the true magic can be seen inside the brain.
It may not be entirely surprising to find out that the brain of somebody in love
looks awfully similar to one on cocaine.
Cocaine acts on the pleasure centers in the brain by lowering the threshold at which they fire.
This means that you feel really good a lot easier.
We see the same thing in the brains of those in love,
but it's not just the cocaine or the love that makes you feel good.
It's the fact that anything you experience will now more easily set off pleasure centers and make you feel good.
Because of this you not only fall in love with the person, but begin to build a romanticized view of the world around you.
Interestingly, nearby pain and aversion centers begin to fire less,
so you become less bothered by things.
Simply put we love being in love.
So what chemicals are at work to make all of this happen?
Both during orgasm or by simply looking at photos of a loved one,
there is a surge of dopamine and norepinephrine from the ventral tegmental area.
This not only triggers sexual arousal in your racing heart,
but gives you the motivation, craving and desire to be with a person more and more.
You see romantic love is not simply an emotion,
it is a drive from the motor of the mind.
And this motor brings about intense energy focused attention and elation.
The pleasure centers are part of the brains reward system.
The mesolimbic dopamine system.
If you stimulate this region while learning,
learning becomes much easier because it's pleasurable and perceived as a reward.
We also see a surge in the neuromodulator oxytocin from the nucleus accumbens.
Sometimes called the "commitment neuromodulator" because in mammals
it helps to reinforce bonding or attachment.
When prairie voles are injected with either oxytocin or vasopressin,
they will instantly find a mate to pair a bond with.
Finally, studies have shown that people in love have low levels of serotonin.
Which is similar to people with obsessive-compulsive disorder.
This is likely the cause of our obsession and infatuation during early love.
Amazingly, these areas associated with intense romantic love can remain active for decades,
and more there are many other physiological and psychological components that add to the mix,
the truth is, science still knows very little about exactly why or how love works.
And yet somehow, we all seem to know it only (when we) feel it.
Got a burning question you want answered?
Ask it in the comments, or on Facebook and Twitter.
And subscribe for more weekly science videos.



愛の科学原理 (The Science of Love)

111073 タグ追加 保存
Why Why 2017 年 8 月 16 日 に公開



1capture somebody's imagination 0:03
imagination元々の意味は「想像力」です。ここでは「注意;興味」の意味があるので、capture the imagination of somebody's、あるいは capture somebody's imagination の意味は「ある人の興味をそそる、想像力を刺激する」です。capture one's attention も使われます。
The story of Harry Potter captures children's imaginations.

capture は「捕らえる、捕獲する 」の意味もあります。目的語は動物か人です。
After three hours, police officers finally captured the alligator.

それ以外に、「トップ記事になる」という意味でこれも使われます:capture the headlines
The gossip about Taylor Swift and Tom Hiddleston has been capturing the headlines this week.

2come to a halt 0:32
halt の意味は「中止、停止」です。 come to a halt はある事が停止するの意味です。他の言い方に:come to a standstillwind up があります。

As the semester is going to end, our team project will soon come to a halt as well.

I will wind up the meeting soon.

3set off 1:02
set off は「機械・装置などを始動させる」の意味で、 set off pleasure centers の意味は「快楽中枢を刺激する」の意味です。set offも「出発する」の意味があります。よく使うフレーズset off on a journey の意味は旅に出るです。
They are going to set off on a journey to America.

また set off には「(花火・ロケットなどを)打ち上げる、 発射する」の意味があります。
Somebody was setting off fireworks down the street.

4bother 1:14
bother の最もよく使われる意味は「悩ませる、困らせる」です。例えばsorry to bother you「忙しいところどうもすみません」は日常生活によく聞きますよ!

よく誤解しちゃう bother のフレーズも一緒に紹介します!

第一位は I am not bothered. です。このフレーズの意味は「私は悩まされてない」ではなくて「たいしたことない」の意味です。
I am not bothered whether we go out or stay in.

someone can't be bothered の意味は「この人は邪魔されない」ではなくて「この人は面倒で、あるいは、難しすぎるのでしたくない」の意味です。
She couldn't even be bothered to say hello.


訳 / Mika Wang




  1. 1. クリック一つで単語を検索


  2. 2. リピート機能


  3. 3. ショートカット


  4. 4. 字幕の表示/非表示


  5. 5. 動画をブログ等でシェア


  6. 6. 全画面再生


  1. クイズ付き動画


  1. クリックしてメモを表示

  1. UrbanDictionary 俚語字典整合查詢。一般字典查詢不到你滿意的解譯,不妨使用「俚語字典」,或許會讓你有滿意的答案喔


この度、VoiceTube アプリは
2018 年 12 月 19 日(水)に


VoiceTube がさらに新しく!

VoiceTube ウェブ版一部機能について、アプリのリニューアルに伴い、