I've heard that poison ivy can cause severe itching.

我听说毒藤会引起严重瘙痒。

He was always scratching because his skin was itchy, but not any more.

他总是因为皮肤瘙痒而抓挠，但现在不一样了。

Sun thus thinks of these Tac1-expressing neurons as the itch neurons in the brain.

因此，孙衍刚认为，这些表达Tac1元是脑中瘙痒元。

And when they do, they cause itching and great discomfort.

当它进入皮肤后，会引起瘙痒，带来极不适感。

It's true. It was like my brain was itchy and I couldn't scratch it.

是真，仿佛我脑瘙痒难，而我却挠不到。

But that serotonin also makes it easier for the itch signal to be re-triggered again.

但是血清素也使得瘙痒信号更容易再次被触发。

So the itch nerves fire again and you get even itchier!

所以瘙痒再次开火，你会变得更痒！

It would seem that our brains now perceive an itch as an actual vibration from our phone.

似乎是我脑把瘙痒看作是手机真实振动。

But since itchiness can be caused by so many things there isn't a one-size-fits-all remedy.

但是既然瘙痒可以由很多事情引起，所以就没有一刀切治疗方法。

Which could be a big relief for many irritated people.

对许多被瘙痒惹恼人来说，这可能是巨安慰。

The itch sensation, also known as pruritus, is not the most pleasant thing, but it evolved for a good reason.

瘙痒感，也称为瘙痒，不是最令人愉快事情，但它进化是有充分理由。

So for example, ask about headache? Neck stiffness? Eye pain? Skin rashes or itching?

比如举个例子，头疼吗？脖子僵硬吗？眼睛疼吗？有皮疹或皮肤瘙痒吗？

However, humans readily become allergic to some proteins in mosquito saliva, resulting in the itch.

然而，人类很容易对蚊子唾液中某些蛋白质产生过敏反应，从而引起瘙痒。

Everyone knows what it's like to itch. And the sensation can drive you mad.

每个人都知道瘙痒是什么感觉。这种感觉会让人发疯。

This is largely due to our limited knowledge about the neuromechanism of itch.

这主要是因为我对瘙痒机制了解有限。”

This histamine then interacts with " itch neurons" which prompt that scratchy feeling.

然后，这种组胺会与“瘙痒元”相互作用，从而引发瘙痒感。

And Sun notes that: Effective treatment for chronic itch is still lacking.

“现在仍然缺乏有效治疗慢性瘙痒方法。

Less pleasurable feelings include extreme itching and vomiting.

不太愉快感觉包括极度瘙痒和呕吐。

The average person experiences dozens of individual itches each day.

一般人每天会历几十次瘙痒。

It's super, super cool 'cause it's meant for itchy skin.

它超级棒，因为它专为瘙痒皮肤设计。