By better understanding how the brain falls in love, we can learn about why the brain can get so obsessed with this powerful emotion.

更好了解大脑是如何坠入爱河的，我们就可以知道大脑为何会被这种强烈的感情迷恋。

Voice 1: The researchers at Salford University also examined fear and sound. Fear is another powerful emotion. Particular sounds can cause fear.

声音1：萨尔福德学的研究人员还调查了害怕和声音的关系。害怕是另一种强烈的情绪。特定的声音可以引发害怕。