The pill's side effects have had a bad wrap for quite a while now — weight gain, mood swings, blood clots, etc. — but now researchers are adding poor judgment when it comes to finding a mate to that list. We all know about pheromones, but MHC (major histocompatibility complex) genes are another big player when it comes to compatibility. Apparently the best mates are those with a different MHC smell than you, but new research found that women on the pill are actually attracted to men with matching MHC.
According to Live Science,
MHC genes churn out substances that tell the body whether a cell is a native or an invader. When individuals with different MHC genes mate, their offspring's immune systems can recognize a broader range of foreign cells, making them more fit.
To make things even more complicated, matching MHC can cause fertility problems and the potential for the relationship to dissolve if the woman goes off the pill since her order detection will change.
As someone that's been on the pill before, and had a string of incompatible mates, I can't say if it was pure coincidence or if the pill was actually to blame. What do you all think? Does this research have any merit when it comes to your personal life or do you think it's all happen circumstance?