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  • have you ever been drifting off to sleep in your bed all quiet at night and

    你是否曾在一個安靜的夜晚正要入睡的時候

  • suddenly feels like you're falling in your whole body twitches what is that

    你突然因為全身抽蓄而感覺身體在下墜,那是什麼?

  • well that's a jerk, a hypnic jerk to be precise, a hypnic jerk sometimes called a sleep start is

    那是抽動,準確地來說是『入睡抽動』,入睡抽動有時也被稱為 『Sleep Start』是

  • the scientific term for what happens when you jump in your sleep there the

    一個科學名詞用於解釋當你在入睡抽動時,你的

  • involuntary muscle twitches that happened in your arms legs or even your

    不隨意肌抽動將發生在你的手和腳上,或甚至是

  • entire body as you drift off to dreamland, most people get them roughly

    你的全身,當你慢慢步入夢鄉的時候,大部分人都會這樣,大約

  • 70% of the population jumps in their sleep, but why do they happen

    70% 的人都會發生入睡抽動,但為什麼發生這種現象呢?

  • there are two main theories based on neural science and evolution most common

    這裡有基於神經科學及進化論的兩個理論,最常見的

  • explanation is that as you fall asleep there are two different systems your

    解釋是當你入睡後,有兩個不同的系統在你的

  • brain that are basically battling each other. System number one, a network of

    腦中互相競爭。第一個系統,一個網絡由

  • nerve cells called the reticular activating system is just below your

    神經細胞組成並成為網狀活化系統,正好落在你

  • cerebral cortex the big wrinkly part of your brain. when this system is in full

    大腦皮層的下方,就在腦部最多皺著的地方。當這一個系統全力運作時

  • force you feel alert, it essentially helps keep you awake. system number two

    你會感到警惕,這實質上會讓你感到精神。第二個系統

  • call the ventrolateral preoptic nucleus or VLP0 for short is located near the

    稱做為腦側室前視核或者簡稱『VLP0』則落在於

  • optic nerve and influences your sleep cycle, the VLP0 sometimes referred

    視神經附近並且會影響你的睡眠週期,『VLP0』有時也被稱為

  • to as the sleeps switch, as you fall asleep each night or during nap time

    『Sleep Switch』,當你入睡或者是午休時

  • the VLP0 system begins to take control from the reticular activating

    VLP0 系統將會開始控制你的網狀活化系統

  • system during this hand off from one system to another the alert part of your

    在這個系統的交接過程中,腦部中的警惕系統

  • brain can still sometimes stimulate your muscles causing twitches, these hypnic jerks are

    有時候還會刺激你的肌肉並造成抽動,這些入睡抽動

  • last-ditch attempts by the reticular activating system to maintain control of

    是網狀活化系統最後一搏在於嘗試控制

  • your body as you more or less choose to sleep, system number one usually

    你的身體,當你比較偏向於不睡覺時,第一個系統一般會

  • seized control the system number two the VLP0 and the hypnic jerks eventually

    取得控制第二個系統『VLP0』,然後入睡抽動將終於

  • stopped, so these jerks are thought to be the result of a sleeping waking war

    停止,所以這些抽動也被認為是一個「睡覺」或「清醒」之間的戰爭,

  • happening in your body each time you try to get some shut-eye, another less common

    發生在你的身體中每當你想要休息,另一個比較不普遍的

  • theory for what causes hypnic jerks involve our primate ancestors. some scientists think

    理論用於解釋這個抽動是由於我們靈長類動物的祖先,一些科學家認為

  • that the ancient primate brain associated relaxation or the beginning

    古時候的靈長類腦是和『放鬆』有關聯或在剛開始

  • stages of sleep with falling out of a tree, hypnic jerks were a way of waking the

    階段入睡時跌下樹時,入睡抽動是一個快速喚醒

  • primate up quickly so they could take action and possibly break their fall.

    靈長類的方法,以致他們可以採取行動避免下跌。

  • so these muscular twitches might have stayed with us as we evolved over the years.

    所以這些肌肉抽動也許就這樣隨著我們演變而保留下來了

  • whatever causes hypnic jerks they're nothing to worry about according

    無論是什麼造成入睡抽動,這沒有什麼好擔心的,根據

  • to most experts but if you don't love getting jolted awake feeling like you're

    大部分專家說法,但如果你不喜歡被震醒,感到你好像

  • plummeting near-death there are some steps you can take to limit how many

    快要跌至死亡,這有些方法你可以用於限制

  • sleep start to experience things like high caffeine consumption, working out in the evening hours,

    『Sleep Start』的發生,就好比如攝取大量的咖啡因,在傍晚時鍛煉

  • high stress levels and lack of sleep can cause more frequent

    擁有很大的壓力或者缺乏睡眠可會造成更頻繁

  • and more intense hypnic jerks, so cutting back on the coffee, getting your workout

    或是更嚴重的入睡抽動,所以減少咖啡的攝取,鍛煉時段在

  • done in the morning and managing your stress levels and sleeping patterns

    早上完成並且管理你的壓力和睡眠習慣

  • might result in fewer hypnic jerks, but like I said they're not dangerous

    可能會減少入睡抽動,但就如我剛說的這些抽動並不危險

  • so if they don't bother you, no need to ditch your afternoon latte, there're bigger jerks

    所以如果他們並不會讓你困惑,你不需要減少你中午的拿鐵,還有更多其它的「混蛋」

  • out there to battle after all. Thanks to all of our patrons on patreon for not being jerks

    在需要去抗爭。感謝所有在 Patreon 的支持者並不是「混蛋」

  • you keep these answers coming you'd like to submit a question to be

    你們保持這些答案的到來,如果你們想要提出任何問題

  • answered or get some videos a few days before everyone else, just go to

    讓我們回答,或是比其他人早幾天收到一些影片,只要到

  • patreon.com/scishow and don't forget to go to youtube.com/scishow

    patreon.com/scishow 並且不要忘記到 youtube.com/scishow

  • and subscribes.

    並且訂閱。

have you ever been drifting off to sleep in your bed all quiet at night and

你是否曾在一個安靜的夜晚正要入睡的時候

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B2 中高級 中文 美國腔 入睡 sleep 網狀 靈長類 活化 鍛煉

你是否會在睡覺時抽動?來看看科學怎麼說吧!(Why Do We Jump in Our Sleep?)

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    Joseph Yap 發佈於 2016 年 07 月 07 日
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