Apparently you really can have chemistry with someone — at least, that’s what scientists say. In a recent study, published in Nature, scientists discovered that white-hot attraction is part of our genetic coding.
All humans have their own unique human leukocyte antigen (HLA) complex, which helps the immune system differentiate between its own cells and those of unwanted viruses and bacteria. But the HLA complex doesn’t just keep you healthy, it also influences attraction. After studying attraction patterns in 254 couples, researchers found that having a partner with a very different HLA complex “correlates with sexuality and enhances the desire to procreate” — a.k.a. opposites attract!