In the case of doctors, that meant bleeding their patients.

就医生而言，这意味着为病人。

" That'll purge me, " he urged as an objection to all reasoning.

" 就不痒了。" 人什么意见也听不进去。

When he fell sick several days later, he had a doctor bleed him.

【bleed】几天后他病倒了，就让一个医生给他做治疗。

To correct the balance of these fluids, doctors employed dangerous treatments like bloodletting and purging.

为了矫正这四种体液的平衡，医生采了净化等危险的治疗方法。

But here's the thing: Why was bloodletting so popular in so many places for so long?

为什么这么长时间以来，在那么多地方如此流行？

He'd also seek out patients undergoing bloodletting in order to take all their life juice for himself.

他还会寻找正在接受治疗的病人，以便把他们的液拿来自己喝掉。

Physicians would try any desperate measure, bloodletting was tried, leeches were used, but none seemed to work.

内科医生尽各种权宜之计，尝试过 水蛭吸等方法 但没有一种方法得见起效。

Therapeutic phlebotomy or bloodletting can be used to manage iron overload, as well as deferoxamine, an iron chelating agent.

治疗性静脉切开术或疗法治疗铁超负荷，也使铁螯合剂去铁胺。

Relax. I didn't kill anyone for it. This phlebotomist I went out with a few times, he's my supplier.

别紧张。我没为了它杀人。我这个医师约会过几次，他是我的供货商。

It is not clear that such bloodletting is required.

目前尚不清楚是否需要这样的。

Capturing a live Saint-level dragon to engage in bloodletting?

活捉一条圣级龙来?

Some seem strange now, like the bloodletting tools.

有些现在看起来很奇怪，比如工具。

Scenes depicting ritual bloodletting as well as parades of musicians hint at a complex culture that fascinates us to this day.

描绘仪式乐师游行的场景暗示了一种复杂的文化，至今仍吸引着我们。

Bloodletting, purging, fasting -- they were all well-regarded treatments.

、通便、断食——这些是备受推崇的治疗方法。

First, the chosen ones had to complete a four-day fasting and bloodletting ritual.

首先， 被选中的人必须完成为期四天的禁食仪式。

The doctor prescribed leeches, mustard-poultices, and calomel, and ordered him to be bled.

医生开了水蛭、芥末膏甘汞的处方，并命令他。

For 3,000 years, people have been cut or given leeches to let out the blood because they thought that would make people better.

在长达3000年的时间里，人们划破皮肤或使水蛭吸，因为他们认为能够改善他们的身体。

They also memorized poems to commit information to memory— such as one identifying where on the body bloodletting should be performed.

他们还通过背诵诗歌来记忆信息，比如一首确定应该在身体的哪个部位进行的诗歌。

One study showed therapeutic blood letting improved biomarkers for patients with non-alcoholic fatty liver disease, a condition that commonly appears with diabetes.

一项研究表明，治疗性改善了非酒精性脂肪肝患者的生物标记。非酒精性脂肪肝通常出现在糖尿病患者身上。

Even today, we still use urine to diagnose people, but we don't usually recommend bloodletting, which was the most common treatment of the middle ages.

即使在今天，我们仍然尿液来诊断人，但是我们通常不建议——这是中世纪最常见的治疗方法。