I found this kind of interesting. Rather than being attracted to someone who is just like you, you are more likely to be attracted to someone who is genetically DIS-similar to you. Specifically these HLA complexes, which are genes responsible for your immune system, interestingly. In fact, all that talk about pheromones and liking the “smell” of your significant other was also included in this analysis. It was confirmed: Those who had opposing HLA complexes found each other to smell more appealing than those with the same. Read the full length article below:
We All Have a Gene That Predetermines Who We Are Attracted To, Says Science | Personal Space
Now if we could just ask a potential date for a cheek swab before taking it any further we might save ourselves a lot of wasted time in dating the wrong people!