About half were given Heparin to inject, the other half a placebo.

约一半的孕妇用肝素进行了注射，另一半孕妇使用了剂。

And finally, they were given a placebo and were indeed told it was a placebo.

最后一轮中，研究人员给了他们剂，也确实告诉他们这是剂。

Even if it's a placebo, it's working on me.

即使是剂，它对我也有效。

And yeah, that's why your body accepts placebos as real medicines.

是的，这就是为什么你的身体会剂当成真药。

The other group was given a placebo – a shot with an inactive substance.

另一接种了剂，即注射了非质。

For the next six, they were given either a placebo or a drug.

而在接下来的6次当中，他们要么接受剂治疗，要么就是真的药。

In the second, they were given a placebo but was told it was Adderall.

在第二中，研究人员给了他们剂，但告诉他们是 Adderall 。

This is because it is hard to develop a placebo for cold water baths.

这是因为很难开发出冷水浴的无效对照剂。

Researchers randomly assigned 159 pregnant smokers to take either daily vitamin C pills or placebos.

研究人员们随机抽选了159名怀孕期间仍然吸烟的妇女，让她们每日服用维生素C或者剂。

I don't know. Some sort of placebo effect, I guess. Placebo, you say. Interesting.

不知道，算是剂效应吧。剂，是吧？有意思了。

Some people will get the vaccine, others will get a placebo basically a shot that does nothing.

一些人将获得疫苗，而其他人只能获得（药剂）罢了，而那些基本上是做不了什么的。

On one hand, it's a placebo effect.

一方面，这是一种剂效应。

A placebo is something that has no effect.

placebo 指的是没有效果的东西。

The no placebo and placebo trials observed 21.7 and 21.1 reps respectively in the 60% 1RM squat.

无剂和剂测试分别观察到最大负荷的 60% 重量的深蹲分别是21.7次和21.1次。

Meanwhile, the actual drug was least effective when the patients thought it was a placebo.

同时，在患者认为自己得到的是剂时实际疗效则是最低的。

This is where the placebo effect comes into play.

这就是剂效应的作用。

Overall, the drug did work better than the placebo.

整体结果显示，药的治疗效果比剂更好。

In the third round, they were given 10 milligrams of Adderall, but was told it was a placebo.

在第三轮试验中，他们服用了10毫克的Adderall，但被告知这只是剂。

But only study participants with obesity ended up drinking significantly less than their peers who received a placebo.

只有肥胖的研究参与者最终饮酒量明显少于服用剂的同龄人。

The other half received an inactive substance, called a placebo.

另一半接受了一种被称为剂的非质。