Part of what keeps your heart under control is your parasympathetic nervous system.

保证心脏处于可控状态的部分原因是你的副交感神经系统。

If the heat generated is intense enough, the body's parasympathetic nervous system is triggered, which creates a relaxation response.

如果产生的热量足够强烈，身体的副交感神经系统就会被触发，从而产生放松反应。

And the other one talks you down and effectively undoes what its foil did. And that is the parasympathetic nervous system.

另一个会让你沮丧，有效地解除它的衬托所起的作用。那是副交感神经系统。

The second half, that's the exhale, comes from your parasympathetic nervous system, which affects your ability to relax and calm down.

后半部分，呼气，副交感神经系统发挥作用，影响放松和平静的能力。

We have parasympathetic nervous system and our sympathetic nervous system.

我们有副交感神经系统和交感神经系统。

Then, the prefrontal cortex takes over from the amygdala and stimulates the parasympathetic nervous system.

然后，前额叶皮层接管杏仁核并刺激副交感神经系统。

We also see that the parasympathetic nervous system decreases heart rate, which decreases cardiac output.

我们还看到副交感神经系统降低了心率，从而降低了心输出量。

Some drugs, like ones for overactive bladders or excessive sweating, target the entire parasympathetic nervous system.

有些药物，例如治疗膀胱过度活动症或过度出汗的药物， 会针对整个副交感神经系统。

We also learned that the parasympathetic nervous system can decrease the heart rate.

我们还了解到，副交感神经系统可以降低心率。

It stimulates your parasympathetic nervous system, the half of your nervous system responsible for activities like resting and digesting.

它会刺激您的副交感神经系统，这是负责休息和消化等活动的神经系统的一半。