Do you know what capsaicin is?

你知道辣椒素是什么吗？

Consuming this much capsaicin would certainly end up with you being sent to the hospital.

吃下这么多辣椒素，结局肯定是会被送进医院的。

Water spreads the capsaicin around your body, making your pain even worse.

水会把辣椒素扩散到你的全身，加重你的疼痛感。

But everyone reacts to this level of capsaicin differently.

但每个人对这种程度的辣椒素的反应是不同的。

But some rats also got a pinch of capsaicin.

不过其中一些还进食少许辣椒素。

And, most importantly, birds are insensitive to the sting of capsaicin.

最重要的是，鸟类对辣椒素的刺痛不敏感。

The chemical in peppers that causes the burn is called capsaicin.

辣椒中引起灼烧感的化学物质被称为辣椒素。

And resiniferatoxin, or RTX for short, does what capsaicin does, just better.

树脂毒素，或者简称 RTX，和辣椒素一样，而且效果更好。

And the way these heat units are determined is based on how hot the pepper's capsaicin is.

这些辣度单位的量度方法是基于辣椒的辣椒素有多辣。

The subjects were then given food kicked up with capsaicin, which puts the heat in chili peppers.

实验者随后食用提取自辣椒的辣椒素，并且强度越来越大。