Is the Nerve O in your nose really this important to who you are sexually attracted to?

What sexual cues do our scents give off? For one thing, we are more likely to be attracted to people whose scent is dissimilar to our own. Family members often share similar chemicals, so our attraction to differing chemical makeup suggests that sexual cues evolved to protect close family members from procreating together.
Research has also shown that these unconscious cues processed in Nerve “O” can make or break a relationship. Couples who have high levels of chemicals in common are more likely to encounter fertility issues, miscarriage and infidelity. The more dissimilar your and your partner’s chemical makeup, the better chance you will have at successfully procreating and staying together.