It's often said that love causes us to act in strange ways, and according to this video, our reactions are more than just behavioral. From enlarged pupils to blushing and even changes in vocal pitch, our body reacts when attracted to another person, says 3D News. For more on how the object of your affection can cause a reaction, watch this short video.

Read: Can Science Explain Love? Brain Signals And Hormones Signal You To Fall For Someone

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