Hey there! Welcome to Life Noggin. If you've ever had a headache, you know that it can feel like your brain is trying to push its way out of your head. And while that may make for a cool sci-fi movie, it throbs and it is generally a pretty bad time. So what the heck is going on here?
嘿大家!歡迎來到 Life Noggin。如果你曾頭痛過，你就會知道那可以感覺起來像你的腦袋正試著將自己從頭殼裡擠出來。雖然那可能可以拍成一部很酷的科幻電影，但頭陣陣抽痛，那基本上是滿痛苦的時刻。所以到底是發生了什麼事？
Well, let's start off with a common misconception. Your brain is not actually the thing that is hurting. In fact, your brain doesn't even have pain receptors like the other parts of your body do. This is why it's possible for surgeons to operate on a patient's brain while they're still awake. So if it's not the brain that's hurting, what is?
Well, for most migraines, blood vessels seem to be the main culprit. One theory is that serotonin and the other chemical messengers cause blood vessels around the brain and head to swell. This increases blood flow and stretches nearby nerve cells, which send pain signals to the brain. And thus our heads hurt, along with vomiting and nausea. The only silver lining is that migraines only tend to affect one side of the head. Tension headaches, on the other hand, affect both sides and feel like a tight band is squeezing the top of your head. As the name suggests, these headaches are the result of tension in the muscles of your head and, sometimes, neck. And if you've ever gotten a headache after wearing glasses with the wrong prescription, it's because the eyestrain triggered it.
Lastly, if you're going to take painkillers to relieve the pain, be careful. If you take them for too long, you may develop a medication-overuse headache. Yes, you heard me right. A medication to treat headaches may cause even more headaches—kind of defeats the purpose, doesn't it? Scientists aren't exactly sure what causes them, but it seems to be connected to headache-specific pain pathways and changes in neuronal excitability.
So tell me in the comments: How often do you get headaches? And what do you do to treat them? Have any secret remedies? Make sure you come back every Monday for a brand new video. And if you want even more Life Noggin, check out this video we did on the science of selfies. As always, I'm Blocko. This has been Life Noggin. Don't forget to keep on thinking.
那麼在留言區告訴我：你多常頭痛？你怎樣治療頭痛？有什麼祕密療法嗎？務必每星期一回來觀看全新影片。如果你想看更多 Life Noggin，瞧瞧我們這部討論自拍科學的影片。老樣子，我是 Blocko。這是 Life Noggin 頻道。別忘了持續動動腦喔。
- 「導致、使成為可能」- Make For
And while that may make for a cool sci-fi movie, it throbs and it is generally a pretty bad time.
- 「以...開始」- Start Off
Well, let's start off with a common misconception.
- 「事實上」- In Fact
In fact, your brain doesn't even have pain receptors like the other parts of your body do.
- 「困境中的希望、慰藉」- Silver Lining
The only silver lining is that migraines only tend to affect one side of the head.
- 「另一方面」- On The Other Hand
Tension headaches, on the other hand, affect both sides and feel like a tight band is squeezing the top of your head.