Researchers have recently discovered a “secret sex nerve” that they say may control who you are sexually attracted too. This olfactory nerve may be the route through which pheromones are processed.
Nerve “O” has endings in the nasal cavity, but the fibers go directly to the sexual regions of your brain. Because Nerve O bypasses the olfactory cortex, it does not register a conscious smell, but rather identifies chemical sexual cues.
Research has shown that the unconscious cues processed by Nerve “O” can “make or break a relationship.” For instance, you are more likely to be attracted to people whose scent is dissimilar to your own. Couples who have high levels of chemicals in common are more likely to encounter fertility issues, miscarriage and infidelity.
However, pregnant women are drawn to people with similar chemical makeup. This means that if you are taking a hormonal contraceptive, which fools your body into thinking you are pregnant, you might be more attracted to people with similar chemical makeup. If you were on the pill when you met your mate, you might, therefore, feel less attracted to him when you stop taking it.