Research calls this phenomena " emotional contagion" .

研究称这种现象为“情绪传染”。

Emotional contagion can either be rewarding or dangerous.I had better let you go.

情绪感染可以是有益的或危险的。我最好还是放你们走吧。

So some scientists wondered how much these chemosignals might play a role in emotional contagion among humans.

因此，一些科学家想知道，这些化学信号在人类情绪传染中可能发挥多大作用。

This suggests that the subconscious information in another person's sweat can play an important role in emotional contagion.

这表明，另一个人汗液中的潜意识信息在情绪传染中发挥了重要作用。

In fact, psychologists have observed the phenomenon called emotional contagion.

事实上，心理学家已经观察到一种叫做情绪传染的现象。

I know this is not your work, this—the emotional contagion stuff.

JAD：我知道这不是你的工作，这就是情绪传染的东西。

They concluded that emotional contagion through smell has a strong influence on our empathy, and can sometimes even override what we see.

他们的结论是，通过嗅觉的情绪传染对我们的同理心有很强的影响，有时甚至可以超越我们的视觉能达到的效果。

Among social species like humans, emotional contagion, or the ability to transmit emotions from one individual to another through the senses, is common and pretty useful!

在像人类这样的社会物种中，情绪传染，或通过感官将情绪从一个人传递到另一个人的能力，是普遍的，而且非常有用！

And it turns out how well you're able to regulate your emotions depends on how susceptible you are to a principle called emotional contagion.

事实证明，你调节情绪的能力取决于你对情绪传染原理的敏感程度。

There's something else about smiles which is going to come up, which your question raises, I think, which is going to come up in--when we talk about emotional contagion and actually, some issues of morality.

关于微笑还有一点是即将提到的，你的问题引发了这一点，我觉得在谈论情绪传染时，也会提到一些道德问题。

Unconscious reflexes in the brain stem; the synchronization of rhythm to some internal cadence, such as a heartbeat; conditioned responses to particular sounds; triggered memories; emotional contagion; a reflective evaluation of the music -- all seem to play some role.

脑干的无意识反射，音乐节奏与身体内部节奏（如心跳）的同步，对特定声音的条件性反应，音乐所触发的记忆，情绪的感染性，对音乐的反思性评估--所有这些似乎都起到了一定的作用。