On June 24 scientists conducted an experiment in an olfaction lab in which 132 people were each told to wear a shirt provided by the lab in order for the shirt soak up their body odor. The scientists were curious about whether or not it is true that some people tend to be attracted to others if those others have similar scents to their own bodily fragrances. The scents on the T-shirts were then assessed by an electronic nose.

Next, the test subjects were told to interact with other test subjects who had completed the same T-shirt task. Afterwards, they all completed a survey asking how much connection they felt with each person. It was discovered that those pairs of subjects whose scents were most similar—as assessed by the electronic nose mentioned earlier—claimed they had more “chemistry” with each other during the interaction.

The odors of the test subjects accurately predicted the connections 71% of the time. The reason behind this is that humans tend to be attracted to those who have the same scent as themselves. The deeper reason for such attraction is still unknown. It is one of those mysteries humankind has yet to uncover the truth about.