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

即使是安慰剂，它对我也有效。

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，另一半孕妇使用了安慰剂。

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

另一组接种了安慰剂，即注射了非活性物质。

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

而在接下来的6次当中，他们要么接受安慰剂治疗，要么就是真的药物。

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

在第二组中，研究人员给了他们安慰剂，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。

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

不知道，算是安慰剂效应吧。安慰剂，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，而其他人只能获得安慰性（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，这是一种安慰剂效应。

A placebo is something that has no effect.

placebo 指的是没有效果的东西。